October 10, 2008

Stop That Clicking Sound

Have you ever noticed that when you click a link in Internet Explorer, there is a distinct “clicking” sound that plays through your speakers? As if the actual click of the mouse button wasn’t realistic enough! If you’ve never heard that sound, you should consider yourself lucky, because by default, it is always activated. At first, it’s unnoticeable, but as you become more experienced with surfing the Web and you begin to follow links to your favorite Web sites, you will start to hear it more frequently. Luckily, there is an easy way to turn this sound effect off. Let's see how!

First, you need to find the Control Panel. In Windows XP, the Control Panel can be located right from the Start menu, as shown below. For Windows 95/98/Me/NT, click on the Start button, choose Settings and then click on the Control Panel icon.

Once you have the Control Panel open, you'll need to search for the Audio properties. In Windows XP, you will find that under Sounds and Audio Devices, if you're in the Classic View. If you're in the Category View, you will first need to click on Sounds, Speech and Audio Devices, followed by Sounds and Audio Devices.
(To see whether you are in the Classic or Category view, simply refer to the first box in the blue column on the left hand side of the Control Panel window).

Below is a screenshot from the Windows XP Control Panel in the Classic View:

Here is one of the Windows XP Control Panel in the Category View:

For older computers, you can find the same settings by clicking on Sounds and Multimedia Properties or simply Sounds, depending on the version of Windows you're using.

Now, once you’ve clicked on the Sounds and Audio Devices icon, you will see the Sounds and Audio Devices Properties window. Across the top of that screen, you will see various tabs that can take you to different parts of the Properties area. Go ahead and click on the Sounds tab.

In the second half of the screen, you will see a scroll menu that lists all of the Windows sounds in different categories. Scroll down until you reach the Windows where to buy propecia online Explorer category and then click on the Start Navigation option.

When you click on the Start Navigation sound, a drop down menu will become available at the bottom of the window. This is where you can change the sound for each action. Click on the drop down arrow and a list of available sounds will appear. The one at the very top is the one we want. Find it and select [None].

Once you select [None], the last step is to click the OK button at the bottom.

Ah, silence sure is golden, isn’t it?!

So, the next time you click on a hyperlink in Internet Explorer, you will no longer have to listen to that artificial clicking sound that has plagued you for far too long!

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Pharming

No, I didn't spell it wrong! Pharming (with a "ph") is actually a term used in the computer world. I know you've heard of phishing before, because we've talked about it in the newsletter and well, pharming sort of goes along with that. It's just another example of how hackers try to manipulate computer users via the Internet. Keep reading for a more detailed definition!

Basically, pharming is the act of redirecting users to fake Web sites, without them ever knowing it happened. When you want to visit a Web site, you type its domain name into your Web browser and that is then translated into an IP address by the means of a DNS server. After all of that goes through, the information is then stored in your computer's DNS cache. Hackers then use that to redirect you to a false site, one determined by the hacker.

Pharming can also occur as an e-mail virus that can destroy a user's DNS cache. Other pharmers can ruin whole DNS servers as well. Luckily, most DNS servers have good security features, where to buy generic propecia but it still doesn't make them immune. So, if you're on a Web site that looks strange, you may be caught in a pharming incident. If that happens, restart your computer to reset your DNS settings, run your antivirus scan and then try going to the same site again. If it still looks odd, contact your ISP and tell them what's been going on. No, pharming is not as commonly known as phishing scams, but it can still be very dangerous. So, always be on the lookout and keep yourself safe!

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October 7, 2008

Choosing the Right Lens

Lenses are very sacred when it comes to digital photography. Without a proper lens, no picture you take will be worth anything. That's why choosing a lens is so important. There are two kinds of lenses: prime and zoom. Most compact cameras have zoom lenses, whereas most professional cameras have prime lenses. The difference between them is rather easy to understand. Prime lenses have one focal length and can be used for specialist photography. On the other hand, zoom lenses are great for general photography, because they have a wide range of focal lengths.

Of course, there are other tangible benefits from using both types of lenses. Like any field, both have their merits and demerits. Below are a few guidelines you can use when choosing the right lens for your photography!

You may want to think about some of the following features when choosing a prime lens:

1.) Superior images: Prime lenses generally offer high quality pictures, because they are largely made for professionals who want to be perfect in their chosen field. What they offer is priceless: clean, crisp and precise shots.

2.) Economical: There are two sides to prime lenses. While there's the nifty 50mm variety that comes cheap, there are others that come with a higher price. Generally though, prime lenses are cheaper, because unlike a zoom lens, they don’t have too many moving parts.

3.) Lightweight: Since prime lenses lack complex construction, they are smaller and lighter as well.

4.) Faster: If you're constantly taking pictures in low light conditions, prime lenses offer a great way to capture your subjects faster (in terms of aperture). Both the 85mm and 50mm lenses are fast and allow you to shoot without a flash.

Now, here are some features to consider when choosing a zoom lens:

1.) Portable: Prime lenses might be lightweight, but zoom lenses are lighter in a different context. If you have to carry a range of prime lenses for different focal lengths to suit different kinds of photography, you might as well just carry one zoom lens that can deliver all of those angles at once.

2.) Dust: If you use several primes, you will have to change the lenses more frequently than with zooms. Every time you change the lens, you're running the risk of letting where to buy cheap propecia dust surround the body and sensors.

3.) Affordable: It's true that some zoom lenses are more expensive than prime lenses, but you have to look at the cost benefits. If you had to buy three prime lenses to meet your photography needs, the sum total would come up to as much or even more than what one zoom lens would cost.

4.) Flexible: This is the best part of a zoom lens. You don’t need to constantly change your prime lenses to shoot at different focal lengths. You can simply adjust the zoom and you're ready. That's very ideal for taking surprise pictures or quick shots where you don’t have time to change your lenses. It's also great when you have to take close-up pictures from a distance.

Here are a few additional options for lenses:

1.) If you have a Canon DSLR, a couple of 50mm lenses would be great for low light conditions. In addition, you could buy a 100mm f/2.8 Macro lens. It's not only good for macro shooting, but it's also great for portraits. If you're going to buy a zoom lens, go for one or more of these: 17-40mm, 24-105mm or a 70-200mm.

2.) You could go for a 70-200mm zoom, because the focal range is too big to cover with several primes. In addition, you could buy a 28mm and 50mm prime lens for lower focal lengths.

3.) For general photography, it's best to go with a 24-105mm mounted lens. Or, if you want to get more creative, you may want to consider a 50mm prime lens.

4.) For those of you who are beginners, a basic zoom lens or a cheap 50mm prime will do. You can then take it from there.

Since there are advantages to both prime and zoom lenses, the best way to make the most of them is to own one of each and use them accordingly. That way, you're not deprived in either direction. It really all just depends on what kind of photography you do and how passionate you are about your work. Prime lenses are definitely faster, but zoom lenses are more versatile, so you just have to figure out what will work the best for you. Happy lens shopping!

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A Little More About IMAP

As you may recall, last week, Erin told you about the Mail Transfer Agent (MTA), so I thought I would take that one step further today and talk about IMAP. Here we go!

First of all, IMAP stands for Internet Message Access Protocol. It's basically a method of accessing electronic mail or bulletin board messages that are kept on a mail server. In other words, it permits a "client" e-mail program to access remote message stores as if they were local. For example, e-mail stored on an IMAP server can be manipulated from a desktop computer at home, a work station at the office and a notebook computer while traveling, without the need to transfer messages or files back and forth between the computers.

IMAP's ability to access messages (both new and saved) from more than one computer has become extremely important as reliance on electronic messaging and use of multiple computers increases. But the functionality cannot be taken for granted.

The widely used Post Office Protocol (POP) works best when one has only a single computer. That's because it was designed to support "offline" message access, wherein messages are downloaded and then deleted from the mail server. That mode of access is not compatible with access from multiple computers, because it tends to sprinkle messages across all of the computers used for mail access. Thus, unless all of those machines share a common file system, the offline mode of access that POP where can i get propecia was designed to support effectively ties the user to one computer for message storage and manipulation.

I know that's a lot of information to take in, but hopefully you now understand IMAP just a little bit better!

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October 5, 2008

Just how much RAM does 32-bit Windows support?



Dennis O'Reilly By Dennis O'Reilly

In his Sept. 25 lead story, associate editor Stuart Johnston reported that the 32-bit version of Windows Vista provides users with "only 3GB of memory, a limitation that the 64-bit edition doesn't have."

Other 32-bit operating systems have similar memory constraints, but Stuart pointed out that 64-bit versions of Vista can address 8GB to 128GB of RAM, depending on the edition (Home Basic, Business, Enterprise, or Ultimate).

Several subscribers commented that the total amount of addressable RAM on 32-bit systems is 4GB, not 3GB. Reader K. Boriskin explains it this way:

  • "The various versions [of Windows] reported 3GB because that's all that was available to the user. The rest is used internally for housekeeping, which certainly makes it supported. That has been fixed with [32-bit] Vista SP1, which now reports all installed memory up to 4GB.

    "See, for a start, [Microsoft Knowledge Base] article 946003."

Stuart's story was referring to the practical RAM limit — the amount of memory that's available for applications after the OS claims 1GB. But it's always a good idea to clarify the difference between this usable memory and the total memory that may be what is propecia installed on a motherboard.

Password-cracking utility sets off false alarms

Contributing editor Ryan Russell's Sept. 25 column in our paid content reviewed the free Cain & Abel utility. This program is designed to find and reveal all the passwords that are stored on a PC's hard disk, which can be useful to legitimate admins as well as nefarious intruders.

It's understandable that such a program would trigger alerts from your antivirus application. Unfortunately, several readers begged off downloading the program as a result of such antivirus alerts. Brett Shand writes:

  • "FYI, Cain & Abel is producing a hit with Avast AV for [the] Win32:Oliga Trojan. It's probably a false positive, and the forums have a reassuring reply from the coders that the program can be whitelisted. But I'm not game, especially for this type of software."
     

Few programs are indispensable. If your suspicions are raised about any application, leave it be. However, we're confident that the program Ryan recommended is safe to use and malware-free. In fact, that goes for all the products we review.

In a future Perimeter Scan column, Ryan will examine in greater detail the issue of antivirus false positives. Stay tuned!

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