I've had two 1280x1024 monitors running for years on an nVidia 8800GT card with no problems. I've now replaced one monitor with a new 2560x1440 one. The card seems to support both fine, however every time I reboot the resolutions and monitor positions revert to the old settings. I've tried upgrading, downgrading, stripping out and reinstalling many versions of the nvidia drivers to no avail.
Logging in as another user doesn't help - same problem. Booting into another another OS (Win7 64) works OK, so it is just this OS installation. During boot up everything looks fine (ie native 2450x1440 res) until the nVidia control panel or something is loaded which flips it back into the old mode. I have no old saved nvidia profiles. I can't find anything in the registry relating to these old settings.
Its driving me crazy having to set resolutions and realign monitors on every reboot! Can anybody help?