Having been introduced to KDiff3 via using Kiln in my new job I have been increasing impressed by this Open Source program. KDiff3 provides intuitive file or directory comparison and merging capabilities. The image below (which I have shamelessly stolen from the project site) shows the program in use:

KDiff3 Screenshot

The KDiff3 project homepage looks really basic but don’t let this put you off.

Computer failing to start up? Test your power supply first. Many forums advise swapping your power supply to see if that’s the fault. But what if you don’t have a spare? This video from Corsair shows you a simple way of testing your power supply, and may, as it did in my case, reduce your stress levels when your computer fails to start up.