I re-formatted my disk and reloaded Windows XP. Everything works great ... except I have no sound. In the Device Manager, the multimedia audio controller has a big yellow question mark on it. Ugly problem > I re-formatted my disk and reloaded Windows XP. Everything works great ... except I have no sound. In the Device Manager, the multimedia audio controller has a big yellow question mark on it. I downloaded Belarc Advisor and did a PC audit. System Model = Desktop ( a clone of some sort ) Processor = 2.67 gigahertz Intel Pentium 4, 8 kilobyte primary memory cache, 512 kilobyte secondary memory cache Main Circuit Board = Board: MICRO-STAR INTERNATIONAL CO., LTD MS-6540 Bus Clock: 133 megahertz BIOS: Phoenix Technologies, LTD 6.00 PG 10/31/2003 Memory Modules = 512 Megabytes Installed Memory How and where do I get a sound driver?