So for what seems like no reason as all, your beloved BlackBerry suddenly begins to delete call logs, emails, and text messages, and is running just plain slow.. Is there something wrong with my BlackBerry??? The answers is no... Your BlackBerry is running out of memory and just needs to make some breathing room. BlackBerry's with only 64mb of memory on board seem to be the most affected by this problem. This would include BlackBerry 8100 series, 8300, 8310, 8320 and slightly older BlackB...