The following popup aperas when i want to lissen to my normal download music.WINDOWS MEDIA PLAYER CANNOT PLAY THE FILE BECAUSE THERES 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 FUNCTIONNING PROPERLY.Ok well,this is a new computer i got,the media player was playing really good,but last night when i wanted to listen if my download song was correct that popup showed.I am really new with this,so i really don't no what to do or where to check for the problem.PLease help me ASAP.