I am using microsoft outlook 2003 on windows xp with an exchange server. Anytime I want to reply, forward, create new mail or add something to tasks, calendar, or contacts I get an error message, "The messaging interface has returned an unknown error. If the problem persists please restart outlook." I have done the "detect and repair" and restarted to no avail. Anyone have any suggestions? I've googled this message and have not come up with any solutions please help!

Hey try this patch and see if it works http://www.outlookpower.com/issues/i...001188001.html