video problems in Ubuntu

[compdoc]

>If I get the sensors working I may know then whether its heat or not.  
>It sure seems that it is. I'll work at it some and let you know what I
find.
>Doug


I haven't been following this conversation, but have you ever checked the
capacitors on the motherboard, video card, and inside the PSU?

You simply have to look at their tops - no need to touch anything. Any that
are rounded on top are bad. With the video card, you can also look for
burned components...

Click on the pictures to see close up:

http://en.wikipedia.org/wiki/Capacitor_plague