I just got a new computer with an AMD Duron processor, 512 M RAM and Windows XP. Only problem is I've got no audio. I've checked BIOS and sound is enabled but Windows doesn't seem to recognize that the speakers are hooked up. When I tried to play system sounds from the Control Panel, I got an error message that said cannot play sound, your sound card may be in use. The computer was a gift that was bought used and the shop didn't have any documentation with the system. I think this might be a driver issue but I'm not sure how to find out which driver to try. Any suggestions?