Problem with Sapphire X1650 PRO graphics card

[Douglas]

I have recently bought a Sapphire X1650 PRO graphics card. I installed it and it worked fine, for three days.
I was playing ROME. I turned up the video resolution to maximum and played on for about three hours.
Then the screen went blank, except for a message that said:
ATTENTION OUT OF RANGE
H:134 9khz V:257 2hz
I tried restarting. I tried restarting in safe mode. I tried restarting in safe mode and doing a System Restore to two days previously. Nothing worked.
Finally, I removed the new graphics card and put back my old one. The computer now works OK.
Is my new graphics card buggered, or am I doing something wrong?

[Ben]

Sounds like you turned up the resolution too high for the monitor. Try by starting Windows in VGA mode and reinstall your GFX drivers.

[Douglas]

Thank you.
I am computer-illiterate. How do I start in VGA mode? Are the GFX drivers the ones on the disc that came with the graphics card?
Douglas

[Taxation]

start the computer in safe mode, remove the gfx card drivers then restart the computer

[Ben]

VGA mode should be in the list on the same screen as Safe mode. This gives you all your PC functionality less the Graphics drivers.