I’ve been running the Office 2010 beta for a while, although I’ve seen this problem occur on Office 2007 as well. Periodically, I’ll lose my ability to select text with the mouse inside Outlook. It just simply won’t work. Closing and restarting Outlook always fixes the problem, but it’s an annoying problem to have to deal with. After some searching on the internet, a solution from Microsoft popped up. From http://support.microsoft.com/kb/940791 [more]

Problem Description:

You install an automatic update for Microsoft Office Word 2007 on a Windows Vista-based computer and then restart the computer. If Word 2007 was running when the computer was restarted, you experience one or more of the following symptoms:

  • The mouse does not work when you use Word.
  • You cannot open a Word document from the Search window in Windows Vista.
  • You cannot open a Word document from Windows Desktop Search.
  • Word crashes when you try to start or exit Word.
  • Word crashes when you open the Open dialog box.
  • Word crashes when you save a document.
  • Word crashes when you close a document.

The fix is simply to open the registry, browse to and delete the following registry subkey: HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Word\Data

Then close and restart your Word applications (Word, Outlook, etc.). So far, this seems to have fixed my problem, although I’m going to give it another week or two before I call it comfirmed.