We just moved to a new house. Kept the same computer and all the hardware. It is an emachines and we just bought it new last March. At first i thought the problems were the speakers. When we try to play a file or cd it says it can't open because the program is in use by another program. There is no speaker icon anymore either. I went to control pannel and it says there is no device installed. It says my sound cards are installed and working properly. I tried switching usb ports and it still didn't work. What do I need to try next? I really don't think its the speakers execpt they don't seem to be installed anymore.