First off, are you using a Blackberry Enterprise Server? Go to Calendar and click for Menu and select Calendar Options. Under ACTIONS set Keep Appointments for (options are 15 Days, 30 Days, 60 Days, 90 Days or Forever). Note that if you are running out of storage space/memory you may want to add more memory. I know the 8330 (Curve) will take up to 4MB and I’m pretty sure the 8130 (Pearl) will too. Also, you may want to check and see what you archiving rules are in your Outlook.