Well I just changed my processor and mobo to the 2600+ barton and to the A78X-E deluxe mobo. I got it all setup the dealer is well known to me told me I might have to reinstall the OS and yes I had to. I reinstalled Windows XP with Sp1. Everything worked fine except for the onboard sound. Whenever I try to install the drivers for it I get install aborted "Invalid data found" error...any idea why this happens ? Bad OS perhaps ? I have another sound card Creative one and that got detected fine and drivers and all are installed properly. Anyone got any ideas ?? I really need both sound cards ...thanks in advance!