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Try to run System Restore from the command prompt. Use a restore point just prior to when the problem appeared.The following steps came from http://bertk.mvps.org/
How do I Start the System Restore tool at a command prompt?1.)
Restart your computer, and then press F8 during the initial startup to start your computer in Safe Mode with a command prompt. 2.)
Log on to your computer with an administrator account or with an account that has administrator credentials.3.)
Type the following command at a command prompt, and then press ENTER:%systemroot%\system32\restore\rstrui.exe4.)
Follow the instructions to restore your computer to an earlier state, or undo the last restore if available.
For more information on System Restore, please see this Bleeping Computer tutorial.Windows XP System Restore Guide
Let us know if that helped.
Edited by Joshuacat, 31 December 2005 - 01:26 PM.