I am having a similar problem. I installed Office Professional 2007 several
months ago, and it had no problems until recently. I load Outlook, then close
it, then run some other program. When I try to re open Outlook, nothing
happens. Then when I try to shut down or restart Windows, it says I have to
close Outlook first. So it’s been running in the background, but I can’t open
it until I restart. I’ve run Diagnostics many times. Any thoughts?