SETUP: I have two Hard drives's in my system a SATA Drive Raptor 74 GB and a Western Digital 250gb IDE on primary. Installed Win XP on My SATA Drive and Trying to install Vista on my WesternDigi 250gb in a dual boot configuration. PROBLEM: As I install Vista I get the following Error message below. "Windows cannot install required files. Make sure all files required for installation are available, and restart the installation.Error code 0x8007045D"