I have just taken the plunge and upgraded my mediacenter to Vista (32bit edition) from XPMC2005. When I play an avi file (xvid encoded) and divx files through media player it works perfectly but there are some strange distortions when played through the mediacenter. I have tried a number of different codec packs and still get the same issue. Are the codecs used in mediaplayer the same as the ones in mediacenter (both are 32bit since I am running Vista Home Premium 32bit version) Any ideas? thanks