I have a problem with Outlook constantly using 50% or more CPU resources. When I restart my computer everything seem to work fine for a while and then after a few hours I hear my CPU fan picking up and it stays like that for the most part. When I check the the CPU processes Outlook is at 50% or more constantly.
It seems to be related to search indexing but I'm not sure why. When the CPU resources are high for Outlook when I switch between folders in Outlook it takes 10+ seconds until the contend will display. This has been an ongoing problem since I upgraded to Outlook 2007 a few months ago.