@zeroconf
Hi, maybe you can try using original DivX codec or ffdshow to watch the movie, as
adicoto says is better to NOT use codec packs.
Ehi, I don't tell you to NOT use codec packs, only that it's better to use original codecs 'cause they have less problems and better stability...
It's only a suggestion, I don't know if it will really fix your problem. Try and let me know! :)
Tizio