Like i said in the topic, i have this problem... i installed 3.68 but it can convert only to 128x128 maximum... then i downloaded 4.03 but the 160x120 video crash on my mp4 player... i tried to instal 3.57 but i can't because i have the 3.68 installed and i can't uninstall the 3.68 because of some failure of the windows packaging installer or something like that.. even getting rid of it from registry doesn't help... BTW i'm new in this i got my MP4 player yesterday