As this problem seems to be connected to the length of time the computer has been on, we suspect that there is either dirt on the graphics card or that it's failing
Love 'em or hate 'em, Apple computers have a lot going for them. We explain the differences between Apple and Windows PCs if you're thinking of swapping over
Are you frustrated when your PC beeps, gives an error message and doesn't do what you want it to? We explain what these problems are and how to fix them
This useful utility can tell you exactly what is inside your computer
Do you think your PC's performance is lacking a certain something? We show you how to get your computer working to the best of its ability
Do you need a new PC but can't afford shop prices in today's economic climate? We show you how to build a fast PC for just £150
Drivers play a key role in keeping your PC running correctly. We explain what drivers are, how they work and what to do if they go wrong in your computer
Many companies provide downloadable drivers for hardware on their websites
Users of the Linux operating system will be able to download drivers for 284 Epson printer models automatically rather than manually
This common Windows error message can usually be ignored
Swap the actions of the mouse buttons in Windows 7, Vista and XP
The problem may be caused by the graphics card, its drivers or the monitor
Buying a boxed copy of Windows gives you both the 32- and 64-bit versions
Q.Why are some of the keys on my keyboard doing strange...
Q.Is my phone’s Bluetooth any use?
Q.Can I switch boot drives so that I can work on older...
Computeractive Ultimate Guide - Expert PC Tips
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It's possible to cancel your TV licence, save a heap of money and still watch TV legally – although not in real time. We explain exactly what you need to do
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