Larry wrote:

I am having the same problem. Also Outlook 2007 but losing
appointments after 6 months. I do sync with Palm Tungsten T5 but
can't find any settings that mention deleting appointments.

While I don't use a Palm, the sync software I use with my PDA contains a
setting for specifying how far in the past I with to sync. Does yours?
--
Brian Tillman [MVP-Outlook]