II just purchased a DELL Optiplex GX270 from Overstock.com on December 26, 2007. I received it on January 3 and installed it on January 7. By January 13, the motherboard had gone out and a Dell serviced tech has already come to my house and has it up and running by replacing the motherboard. However, now I donít have sound and itís a multimedia audio problem. Is there a website that I can download the driver for it and also wonder if I can download updates and get Service Pack 2? Apparently, I have Service Pack 1. Thanks