I bought my daughter a $500.00 walmart ibuypower computer for xmas, amd cpu/8gb ram/seagate hd/ nvdia 520 card. Recently while playing wow the game freezes and audio skips in a loop. Prior to this happening, I hear a "chirp" from the hard drive and it appears to be related. Computer played fine for a month so i dont think its heat related. I also downloded recent drivers from nvidia site. Any ideas! Thx all.