When I am loading a part of an assembly the background goes black and the only thing I can see are red dimensions. Assemblies are max at 50 parts. I have tried to change views and turn off and on lighting and I have no luck. This does not happen on every drawing. I also do not have any other files open in SolidWorks. Any suggestions as to what is causing this?

System Specs:
Processor: AMD 64 X2 DUAL 2.2 GHZ
RAM: 5 GB
OS: XP x64 bit
Solidworks: 2008 SP5 64bit
Video: NVIDIA GeForce 6200 512 MB

Picture attached of problem.
As you can tell from the image. Dual monitors also.