For the past few weeks I have been experiencing some display problems. My screens(2) will both change to a fuzzy multicolor mess and locks my computer up. I have checked and made sure that all drivers and programs are completely updated. Also I have checked to make sure that I am virus free(If that matters.). Sorry, I do realize that my parts are old. Below are my PC specs as well as a picture of what it looks like when it happens.
Thanks in Advance!!!
AMD Phenom II X4 955 Black Edition Deneb 3.2GHz Socket AM3 125W Quad-Core Processor
G.SKILL 8GB (4 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066
EVGA 01G-P3-1282-TR GeForce GTX 280 Superclocked 1GB 512-bit GDDR3
Rosewill Xtreme Series RX850-D-B 850W
ASUS M4A78 Plus AM3/AM2+/AM2 AMD 770 ATX AMD Motherboard
If you have another computer somewhere else - try putting that graphics card in the other computer and see if it does the same thing. If it does - you know for sure the GPU is going going gooooooooooooooooooooooooooooooooone.
Also if you have another spare GPU from a friend - try that out to see if it will work in your computer.
You can also try reseating the graphics card, making sure it's seated properly.