The computer is a
Toshiba Satellite P105-S6104
Intel Core 2 T5500 @ 1.66ghz
1gb RAM
Intel Mobile 945GM Express Graphics
120gb hard disk
Outlook 2007
Previously running Outlook 2003 and had similar symptoms

An interesting thing happened today:
My father was using it and noticed it was not having any problems with
slowing down.  I referred to the task manager and it had allocated 75,500 K
ram and never did peg out the cpu cycles by going back and forth.  One thing
different in his setup was that he had a single pane for received emails,
rather than the two pane which shows the emails as well as the contents.  I
then reset the view to the original two pane view and still did not have any
responsiveness problems.

I then rebooted the computer and restarted outlook and again had the
responsiveness problems after opening 5-8 emails.  I noticed though that
outlook only allocated about 41,000 K ram this time when opening instead of
the previous 75,500.  I also noted that everytime I opened an email, it would
take more memory, but not relenquish it once opened.  I kept opening them
until the memory got to the 92,500 k  area and gave up waiting on outlook to
respond and closed it down.

I then closed down and restarted outlook and went back to the single pane
view to see if that was the problem.  I had similar results with the single
pane view of gradual slow down in responsiveness.

I wished I knew what was different about when it was working before?

Any more ideas?

Thanks.....