Same rules as last year: if video performance is poor when...
and/or
- OpenGL acceleration is enabled in Revit
...then your setup is considered to not work.
- Windows hardware accleration is set to maximum
(Given that overlay planes don't seem to help any of the cards I'm on, I've ignored that setting here as contributing to whether your video card "works" for Revit or not. Mods... do change this if needed!)
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Dell laptop using ATI Mobility video card
Win2000 SP4
OpenGL slows refresh times; overlay planes make it worse.
Windows HWACC > full, with OpenGL acceleration off video performance is comparable to 6.1 where OpenGL WAS turned on.