my BB has been feezing a lot lately and deleting all text messages and calls ... BlackBerry Pearl forum
my BB has been feezing a lot lately and deleting all text messages and calls unexpectedly. But my main concern is when it feezes or delays for a minute or two
~via BB (wap.pinstack.com)~
Its cuz your flash memory is drained. You need to reset the bb sometimes. If you need the link to put soft reset so you don't have to do a battery pull all the time it for an app called softreset it works great. http://www.geekandproud.net/blackber.../softreset.jad
Also from the home screen hold alt and hit L G L G and clear the event log.
Hope I helped you out.
You can also try This thread for the disappearing txt msgs and call logs.
Your BB's memory is probably full.