question looks for an answer

i need some help with my divx movies
i play the movie, the sound is correct, the sub are correct but the picture is slow.
i recently formated my pc but i did the same procedure to install the codecs, etc
what should i do

ps: in the small size is playing right, but no when i enlarge it.
please someone help
i installed the same codecs in my laptop but it is still playing wrong

should i download them again??
and if yes, from where???
thanks

[Sonickydon]

just guessing here.. could it be the post-procesing levels of the decoder?
sounds like your video card can't handle the video refresh rate.. so it could be that ..try to set up the decoder with minimal post-procesing levels and check out the overlay mode.