I have A problem with my sound. Windows media won't play my music. c.d's won't play. I can play a dvd, but no sound will come out. All i know is, i loaned it 2 the pawn shop, they said they had 2 erase some programs because it didn't have enough gigs. when i finally got it back, everything was gone including audio and video. i was able 2 restore everything but sound. is there a free install program site i can go 2 get it back?