Digital Home Advisor

If you use Firefox 3 and Yahoo Mail (the nice new interface, not Classic), you might be dealing with a bug I've noticed where the message pane scrollbar doesn't display. It's not a game-breaker, as you can still use the page-down and page-up keys to navigate, but it's an annoyance.

E-mail is the ultimate killer app. Even technophobes who hate everything digital reluctantly acquire e-mail accounts so that they can stay in touch with family and friends.

Ever since the computer age began, boffins have worked to reduce the amount of space required by digital data through compression. Take music, for instance. A typical album in CD format uses about 600MB of storage. Converted to MP3s, however, the files are compressed to just 60MB.

A million factors can affect the intensity of the colors that you see in your photos.

There are many aspects to web security. You can hardly move for apps that automate online protection and safeguard your identity, for instance. But one area that gets less attention is IP-address tracing.

It isn't until you've tested several printers that you realise just how much the quality of output can vary from model to model. But a more striking discrepancy is the one commonly noted between the colours onscreen and those that are printed.

Around the end of the 19th century, King C. Gillette began making disposable razor blades. He sold the handles for these at less than cost price, making a loss but drawing in the punters. Then he sold the blades themselves at far, far above cost price, ensuring a steady revenue stream from numerous customers for years to come. Naturally, the design of the blades was patented, preventing competitors from making cheap alternatives.

How to get the most from your BlackBerry

Get your message across with our advice

The holidays might have tapered off a few weeks ago, but I'm still paying for them. Indeed, my checkbook has an "out of order" sign on it, and my teenage daughter has offered me a short term, high interest loan to see us through the winter.

For 150 years, film reigned supreme. But today our photo archives are in danger of being lost forever as prints fade and the emulsion on slides and negatives dry out and deteriorate. If you want to be able to pass your photos (and your parent's photos and their parent's photos) on to future generations, you'll have to do it digitally.