bought a brand new emachine computer last week with XP operating system. this morning I downloaded two mp3 songs but when i play them both there is no sound at all...they are playing but no sound. tried in Winamp and MS media player. The rest of the computer sounds work and the mp3's that came with the system work too(ready loaded)...so there's nothing wrong with the speakers. the mp3's that don't have sound have a bitrate of 32kbps....the ready-loaded mp3's that do have sound have a bitrate of 64kbps and 144kbps. maybe the download bitrate is the problem.... another thing...the troubled mp3 files are 3.5 MB and 5.1 MB in size.....you would think both songs would have a play time of approx 4 or 5 minutes....but it's showing 16 minutes and 21 minutes...something is wrong..any ideas!!!