AutoCAD Architecture

[#1]

I have a Alienware M17x with 8600 dual core processor (2.4 GHZ), 1G Nvidia 260M Graphic card, and 8G of RAM. These black outs in Autocad Architecture 2013 are random they just happen out of nowhere. I have had my graphics card replaced about three times now, hoping that would fix the problem. Is it that I need a 2G graphic card instead of a 1G or what? Can someone please help me with this? I would really appreciate it.

[#2]

Change ACA2013's hardware acceleration setting, see if that helps.

[#3]

I have turn off my graphics hardware acceleration in the auto cad graphic setting and it is still doing it. The display just goes randomly goes black.

[#4]

Autocad architecture is crashing my computer when the display goes black.

[#5]

that might be a graphics card issue or monitor/screen or video card driver problem

go to start>control panel>performance Information and tools>adjust visual effects set it to adjust for best performance