display driver has stopped responding...

Hi folks,

I've beem getting this error pretty often (once an hour or so): "Display driver has stopped responding and has recovered". Some games (like SWTOR) recover from it pretty well. Some (like LOTRO) do not, and I have to kill them and restart.

I've searched for the problem online - a lot of people are having it, but there's no definitive solution. I've got the latest NVIDIA driver (8.17.12.8562). I've tried various SLI configurations. Currently I have one monitor plugged into each card, and my second card is set to be my PhysX processor.

Could this be related to over-clocking? Any ideas what I can try? Any help is greatly appreciated!

Here's my system:

Motherboard: ASUS P8P67 Deluxe (Intel P67 Chipset) (New & Improved B3 Revision Without SATA 3G Issue)
System Memory: 8GB DDR3 1600MHz Digital Storm Certified Performance Series (Highly Recommended) (Hand Tested)
Power Supply: 1050W Corsair Pro Silver 1050HX (Dual/Triple/Quad SLI Compatible)
Hard Drive Set 1: Operating System: 1x (120GB Solid State (By: Intel) (Model: 320 Series)
Hard Drive Set 2: Multimedia\Data: 1x (1TB Western Digital Caviar (7200 RPM) (Model: Black Edition)
Video Card(s): 2x SLI Dual (NVIDIA GeForce GTX 570 2.5GB (PhysX) (EVGA 025-P3-1579-AR)
Extreme Cooling: AIR: Stage 2: Corsair A70 Dual 120mm Fans High Performance Cooler
CPU Boost: Stage 2: Overclock CPU 4.5GHz to 4.8GHz (Requires Pro or Deluxe Series Motherboard)
Windows OS: Microsoft Windows 7 Professional (64-Bit Edition)

I get this error every once in a while as well. It is completely random and sometimes even happens when I'm doing very little (like browsing this forum with only IE open). I do not believe there is much that can be done at this point :(.