Monitor "forgot" its native resolution overnight

Posted by Ben on Super User See other posts from Super User or by Ben
Published on 2010-12-27T15:40:33Z Indexed on 2010/12/27 15:56 UTC
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monitor

I have:

Hanns G HW173A monitor
NVIDIA GTX 460 graphics card
Windows XP SP3.

It was working. Suddenly overnight I can no longer use my monitor's native resolution of 1440x900. It's not listed, and if I force it it only shows part of the screen. The only resolution that seems to fit the whole screen is now 1024x768.

I have tried reinstalling the NVIDIA drivers as well as disabling and enabling the monitor drivers (for windows XP the monitor uses the microsoft "default monitor" drivers - this is what Hanns G says on their website too).

Any ideas? Thanks very much.

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