jesus demon i'm talk about the quicktime codec. stop jumping down peoples throats. Since quicktime is the only think i know of that supports it, your up **** creek laddy. Either at least try the full QT player to see if that works, or convert every 3pg vido you have to avi untill somebody else has an answer?
either way, people are only trying to help you. i know QT alternative works fine for 3gp's here. media player classic + the two alternatives + ffdshow. 1 player, 3 codecs, plays damn near everthing including dvd's. And it's all free.