We lost an ASUS PU-DL motherboard and that is not in stock in the area. We need to get the machine back up quickly. With the new motherboard (ASUS PC-DL) it hangs at the windows startup screen and cannot seem to load the system settings. Can I run the repair routine booting from the SBS installation disk and have the system load the new drivers? Will installing SBS over what is there overright all of the programs, exchange, sql and such that is now on the disk?