Heres the problem, I just got a new hard drive and got a Operating System from a friend (Windows XP Borg Edition). Everything installed just fine except for my sound. The driver i need is for the realtek AC'97. Ive downloaded all the reccommended drivers, installed, uninstalled, troubleshoot, but there is still no sound and my device manager is still showing a yellow exclamation point. I dont know what to do. Could someone please help me!?!?!?! Thank you.