Post in reply to: ross m. greenberg
It sounds like you will need a system recovery or system restore. Either
there is an advanced boot option for repairing your system at startup (you
will see how to activate that by checking the manual of your computer) or
you can boot from your Vista CD and choose to repair your computer.
http://windowshelp.microsoft.com/Win...f351033.mspxEX
To access system restore, boot with that omiting CD prompt walkaround, and
use System Restore tool in System Tools. If there is some changes to the
software or configuration recently, you can restore the previous restore
point and see whether that will fix it. Or a virus scan can fix it
sometimes.