I bought my wife a Blackberry Pearl from Sprint and everything worked fine for a while and then her call log and messages started to disappear. And occasional she is unable to receive calls. We took the phone to the Sprint store and they say it is a known issue and that Blackberry will issue a software update to fix the problem, but yet I've found nothing on RIM's or Sprint's website on this issue. Has anyone else had this issue or know anything about whats happening and how to fix it?