file corrupt missing

when i installed vista beta 2 at the completing of upgrade puter restarts it says windows did not shut down correctly restart,so i restart the it says windows failed to load cause file missing or corrupt,,,,file GRFILTER.SYS status 0xc0000098 ,,,,HELP ,,,my puter is 4 months old and runs xp sp2,,,,,when i went to vista website and ran compatability cd it said all things a go ,,,,,what do i do ...thanks -- jeff honaker