Select Data Source

[Roy Dennis]

Try this:
Go to windows update, select "View update history" look down the list and see if any show a failed staus, if so make a note of the update name in brackets and see if that same update shows succesfull at a later date, if not go to:
http://support.microsoft.com/fixit/

Then select windows from there then select windows update as one fix.
As that may resolve the problem.
If it is not an update problem then try: some of the other fixes like open desktop features or open program files, then I should run the first three selections that appear.
You can try any of the other fixes also that you think may help.