I usually see this type of crash when Service Pack 1 isn't installed (or isn't installed correctly). Make sure you've got all of your updates done on the system.
Another crash I see like this is if somebody tried to install CUDA drivers on an AMD card. You can't do that. If somebody tried to install CUDA on that machine, uninstall it. It will only cause trouble as mentioned here: Avoid installing NVIDIA CUDA drivers on computers with AMD GPUs
I am running an AMD Radeon HD 6800 Series on three monitors
Well, you are simply exhausting your system's hardware resources. I'd bet that even with no actual programs running this may already be on the edge here, especially if they are different monitors and use high resolutions...