Thank you ken,
I've deleted my existing verifier settings, downloaded the latest drivers
from the NVIDIA website, and was about to clear the old drivers with your suggested software but just wanted to make sure I select the correct ones. There are a few NVIDIA drivers listed:
Should I do the NVIDIA display and PhysX only, or the ATI display as well?
Thanks again : )
EDIT: Also, should I re-enable verifier after installing the new driver?