Recently installed Server 2008 to a Dell PowerEdge, upgrading from Server 2003. I attempted to install Acronis True Image to the server this morning. The installation caused the server to become unbootable. Solved the problem by booting to the Install DVD, dropping into command prompt and renaming snapman.sys to snapman.old. Upon reboot, the server could no longer recognize the USB hard disks intended for backup. I've searched out that the USBSTOR.inf is likely corrupted. How do I reinstall/reinitalize that driver? Is there a better solution?