I recently upgraded my Outlook to 2007, and we run on 2003 Exchange
server. Now, when I try to set up a rule, I get this message: " one
or more rules cannot be uploaded to exchange and have been
deactivated. this could be because some of the parameters are not
supported, or there is insufficient space to store all of your rules."

Is this a compatibility issue, or am I really out of room for my
rules? I would like to see if this is a common problem before I start
deleting rules.

Thanks!