my pc was origanally on xp but then it got upgraded to vista iv recently gone back to xp and the only problem i have is that i cannot play no sound through my pc when i go into media player and insert a cd press play and a message comes up reading: Windows Media Player cannot play the file because there is a problem with your sound device. There may not be a sound device installed on your computer, it may be in use by another program, or it may not be functioning properly.
