QUOTE(wilsonphua @ Jan 29 2015, 12:04 PM)
Could it be graphic card hardware problem? or software problem?
I encounter that error when I'm running AutoCAD and heavy multi-tasking. Seldom occurs during gaming...
some people say change Windows to basic mode, don't use Aero effects.
Just worry if its my 560Ti problem, then hard to sell already lol
It is hard to simply assume what the problem is, because we cant see visually how the components are running
Mostly, it can be either both causing the problem
You can try checking either it is the software part, by installing the driver as I recommended
Use Window classics theme, turn of Aero, usage of Aero does affect the GPU, especially old GPU like yours
If it runs fine on Windows Classic, then the GPU need a change, it cant cope up with the processing you are using in AutoCAD
That it is definitely a hardware issue
In your case, I think the GPU is unable to process the rendering for AutoCAD, causing it to crash
This is my assumption, since you mentioned "Display Driver has stopped responding and fully recovered"
If AutoCAD froze while you are multi tasking and using AutoCAD, definitely your CPU is at bottleneck