Funny thing is I can play this exact same avi on the MCX as long as it's stored on host Vista x64 MC PC. But it won't play from the WHS (says doesn't recognize codec)

I also discovered that the MCX plays the WHS avi with no problem if the MCX is hosted by Vista x86 MC PC.

Looks to me like I'm being bitten by Vista x64. Anybody have any idea what's wrong ?

Thanks in advance.