Hello, well I've just recently started to get this problem where my computer would just freeze. Nothing would work, not crl-alt delete, nothing. I have to reboot the computer the hard way(pressing the button on the case). Anyway, this went on for a couple of days, now my computer freezes and turns into a solid color. Then, like before, I have to restart the computer by pressing and holding the start button the case. This has been going for maybe like 2 weeks now, I did some research on it, however I couldn't find anything really. The only thing I thought may be the problem after doing the research is that the power supply may be dying, as a result it stops the power going into the other parts of the computer, making it freeze on one image. I've had this computer for 3 to 4 years. Asus P6T motherboard, CPU intel i7, Geforce GTX 260, 6GB of ram, and Windows 7 64bit.