ok, so i downloaded musicmatch earlier cuz I wanted to get some tracks that I can't find on limewire. Then I find out that the musicmatch store is only available for US residents, so I removed it. I was also downloading from limewire at the same time, then I went to the gym. Got back from the gym and all the icons of my mp3 files are all of the "unknown file" type of icon instead of the usual WMA icon. I have to click on it, then choose a program to open it every time I want to play a tune. This is really annoying. anyone know what happened and how I can rectify the problem? thanks.