Originally Posted by d_fisher
How much free space do you have? Go to Options > Status to check. Try deleting the phone call log and clear the Browser cache to free up additional space.
this is most likely the problem... some times resetting the BB wil help it clear some space as well. especially if you are running the 4.1 version of the device software ( not sure if the version you posted is that of the device or the Bes)