This is for Intel HD3000 integrated Graphics chip:
To un-check the grayed the SolidWorks 2011 OpenGl just follow the below mentioned steps.
1. Open this registry branch
HKEY_CURRENT_USER\Software\SolidWorks\SolidWorks 2010\Performance\Graphics\Hardware\Intel (In the left Panel)Then select the right side Workarounds and change the value from 10 to 9.
Now open the Solidworks just check Options --> Performance --> Use software OpenGL in SolidWorks It should be unchecked.
If you are using other than Intel try your respective ATI or Radeon workaround values.
Please comment.