Sound like the video card to you?

[Knuckle Dragger]

The boy is telling me his screen will shake, move around, go black and other weird stuff. I saw it shift the whole screen left and then right, black out and come back on.

I hate to shotgun it but my diagnostic skills on computers are just above medieval. Does it sound like the card may be giving up the ghost?

 

[71flh]

First guess would be the cable is loose on one end. Maybe shake the display to see if it acts up.

 

[Gary S]

It almost has to be the video card, the monitor, or the cable connecting them. If you have another computer available, try a different monitor to eliminate that. Buying new parts before swapping usually costs more money to fix than it should cost.

 

[Knuckle Dragger]

I updated the drivers but that didn't have any real impact. I hung the monitor on the wall for him and noticed it doesn't see the cable (scrolls across the screen there is no DVI cable) at times when I moved it. The connections are tight and I don't get any change messing with the ends, but if I wiggle the cable I get the missing cable scroll. A smart man would have wiggled the cable while the computer was running but I didn't think of that until just now I'll do that when I get home. I believe I have another cable.