Now I understand
The only thing I can think of is that you have a third party add-in
installed that could be doing this. What do you have installed? Something
like a bluetooth adaptor, cell phone sync software, backup software etc. If
you do try and disable the add-ins one by one and see if one of them is the
problem. Even if you have not installed anything yourself, your PC
manufacturer may have installed on from the factory, on my Toshiba Laptop
there are three factory installed add-ins for Outlook!
Go to Tools -> Options -> Other -> Advanced Options there are two buttons
there Add-In Manager and COM Add-ins. Try Add-In Manager and uncheck what
you want, OK the selection back to Outlook and then restart Outlook and see
if it makes a difference.
Good luck
Kevin