The calendar of my outlook 2007 continually erases all of my past appointments that are older than a month or so. Essentially my entire calender from the past year is blank except for the past month. This keeps happening. I'll fill up appointments for March and eventually all my Feb appts will be lost as they become more than 4 weeks in the past. I looked in the archive folder and there is nothing I can find. I played with the settings and options and can't figure out what is going on. Please HELP!!