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
As most of us spend hours staring at a PC monitor, it’s important to make sure you get the best possible picture. We explain the behind-the-scenes terminology
Create illustrations with this free program
As the price of monitors has fallen greatly, it's now possible to add another without breaking the bank. We explain how to connect a second display to your PC
Do you really need a technician if your PC won't behave? We explain how to diagnose and fix a variety of problems to get Windows back on its feet
An incredibly powerful graphics card.
A good performing card, but we'd prefer more options for connecting all three monitors
Do you fancy creating your own comic strip or animated film? We explain how some free software will help you make the most of your cartoons
What do you do if your monitor plays up or just won't work? This step-by-step guide shows you how to fix some of the most common problems that can occur
A clever, cool and quiet graphics card
Performance meets price in this impressive video card
Stealthy, silent graphics performance
There are several things you can do if you see such an error message. In this case we suspect the problem might be with the graphics card or monitor
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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Computeractive Ultimate Guide - Cloud Computing
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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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