I would try a System Restore before making changes in the Registry. Find a date prior to this problem and use it.Start> All Programs> Accessories> System Tools> System Restore
When this opens make sure that "Restore my computer to an earlier time
" is chosen, and click on Next>
The dates appearing in bold are the dates that you can restore to, click on the date that you want and then click Next>
to start the System Restore, you may get the message telling you that you will have to restart your computer to start, click ok. When the computer restarts and you have logged on as the administrator a Restoration Complete page will appear, click on OK
to complete the process.
If this doesn't work and you wish to try the registry fix I would suggest that you backup the registry first. If you make a mistake editing the registry you can render your computer inoperable. ERUNT is a good application for this.
[*]Please use the following link and scroll down to ERUNT and download it.http://aumha.org/freeware/freeware.php
[*]For version with the Installer:
Use the setup program to install ERUNT on your computer
[*]For the zipped version:
Unzip all the files into a folder of your choice.
[/list]Click Erunt.exe to backup your registry to the folder of your choice.
Note: to restore your registry, go to the folder and start ERUNT.exe