I would stick with the Rev 30.00 drivers available from MSI through the live update.
I saw that Nvidia had come out with Rev. 30.82 of the detonator drivers and, the noob that I am, installed them at first opportunity. Next came two days of figuring out why my computer reboots itself 10 min into any game I am playing. :O
After reinstalling the 30.00 MSI drivers everything seems to be back to normal, at least so far (fingers crossed).
Didn't realize that could make such a difference...