Vista SP1 Pack

Hi

I downloaded and installed the Vista SP1 Pack. However after a few reboots
the system started checking the files (xxxx of 72xxx files) and keeps
stopping at a file witht he generic name of sbs_corexxxx.dll (number is
around 5400). Anyone able to give me insight on what is happening?

i had to use my Vista installer cd to to repair my install twice before i
got my previous settings back.. otherwise i would have had to reinstall vista
from the cd and would have lost all my documents =(

Im just alittle apprehensive now to try the SP1 update again.

Pls help where able thanks.