Jinda, welcome to BBOS!!!!
The issue that you are having with the email notifications is a known bug in that OS. The best way to eliminate the bug is to use a default theme. If you choose to use a custom theme, to minimize the bug, when you receive a message, open it, then delete it. Also, delete each message individually, as the phone may freeze. (happened to me on .151 a lot of times) You may also get a notification for sms/mms, but when you go into the sms/mms folder, the new message is not there. In this case, you would need to go to the sms/mms folder, click bb key, view folder. I hope this information helps you.... Don't hesitate to ask questions.
