[chris45]

My call logs are being automatically deleted along with all my text messages. Only my emails are left. Anyone else having a problem with this?

Use history:
Blackberry is always on (i turn it off once a month at one of the nights)
Bluetooth is off

Been doing some troubleshooting, but i cant exactly reproduce it.

[mckinneycm]

Your memory is low. Do a reset to free up the cache. Also, when you use a program make sure you close it when you are done by using the menu/close. Don't just press ESC, it will still be open it the background.

[BlackPearl]

in addition, if you're using the internal memory for storage- don't.
buy a 1 or 2gb micro sd card.

[TheBigNewt]

You can go to options-advanced-applications and delete the foreign languages and the sample video. That will free up at lease 10mb of memory. Check available memory: options-status (file free=....).

[White97Jimmy]

Wirelessly posted (BlackBerry8100/4.2.0 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/100)

Delete all of the stuff previously mentioned and change your camera to save pics on a memory card. I try and keep as much free space as possible. My phone hasn't wiped itself in a long time.