DvdFab Platinum 5 and Xbox360 files



when I try to make a file (WMV) from a movie it will finish like every thing went just fine but when I play it there are off colored squares cluttering the screen, at times so many that I can not make out the movie.
Is there something I am doing wrong? I am using the xbox360 profile that comes with DvdFab and nothing else is running while I do the encoding I am using a dell XPS M1710, P4 2330 Mhz, 2.00 GB Ram, 7200 rpm sata hd, windows XP PRO

Thanks AJ.