Have you checked to see if you Video card is listed as a certified Card http://www.solidworks.com/pages/services/videocardtesting.html
Whether it is or isn't this tip will help you determine if the problem is your video card or the drivers, whether you have a certifed card or not.
[blue]How do I set the Software OpenGL option in[/blue][red] SW[/red][blue]?[/blue]
1) Start SW.
2) Go to - Tools\Options\System Options\Performance - Software OpenGL is located at the bottom of the menu
NOTE: You must [red]NOT[/red] have [red]ANY files open[/red]. This will grey out the option and it will be unpickable.
If you have no files open and this option is still greyed out. Then the problem is with your video card. It doesn't not Support OpenGL with SW.
[blue]How do I Turn Hardware Acceleration down to [/blue][red]"None"[/red][blue]?[/blue]
RMB your Desktop\Properties\Settings (Tab)\Advanced\Troubleshoot (Tab) - Pull the slider down to [red]"None"[/red]