Just tried playing some Divx vids... as mentioned in a previous post, some of my Divx will play perfectly fine, while others will play with video but no audio. Now, I find that some won't even open at all and Media Player (or Media Center) will just refuse to even open it and gives the error "windows cannot play this file". Windows 7 is supposed to have native support for all the codecs (divx, xvid, h264, etc...), Perhaps some of the older codecs aren't supported? Anyone have any idea what the problem could be? Again - SOME videos won't play at all, some will play perfectly, and some will show video only with no sound. Help!!