Intermittent Freezing in both Mac OS and Windows With Fusion 5.0.x

Hi,

I'm running a MacBook Pro with Retina display.  I'm running Windows 7 x64 via Fusion.  Mutiple times a day the host OS or Windows will freeze for about 5 seconds.  I find that if I turn off Aero or the 3D graphics acceleration that the issue doesn't repro.  Do I have a bad graphics card?  Anyone else seeing this type of issue?  Other things I could try?

Thanks,

Sean