I have a Dell Dimension 8300 and it randomly started doing this http://img166.imageshack.us/img166/7708/85712303.jpg the other day, it's pretty old and I've had to REPLACE quite a few parts recently, I thought the graphics card MIGHT need replacing but some one else though the memory.Is it a laptop or desktop computer?Is it a desktop or laptop?

Have you tried a different monitor to see if you get the same results...so you can rule out the monitor as the culprit?

Could be the graphics card...if you have a spare...you might want to try replacing it and CHECKING your results.


Keep us posted...It's a desktop. I haven't tried it on another monitor but I did plug my laptop in to that monitor and it worked fine.So the culprit may be the video card installed on the desktop.  Are you familiar with the inner workings of a PC?

Try this...

Turn your MACHINE off and unplug everything from the tower/desktop...including the power cord.  Protecting yourself from ESD (electrostatic discharge)...remove the video card.  Clean the inside of the case, thoroughly, with canned air (NO VACUUM CLEANER) and also clean the slot the video card was seated in.  Using a pencil eraser...clean the pins on the video card.  Re-seat the card...plug everything back in and try again.


Keep us posted...