I've read in previous posts that some people have had the problem from time to time wherein the little unread mail count is missing from the Phone screen on the 650. This is that little envelope that looks like the VersaMail icon. It appears that the problem arises b/c the DefaultHelperDB gets corrupted or changed and is not reset. To remedy this, open Preferences, then Default Apps. Re-select VersaMail as the default email application, and everything should be back to normal. The little envelope should now show up again.

I do not believe that this will solve the the similar and frequent problem of the persistent unread SMS count notification. The little envelope with picture and note icon that won't go away. I believe the only way to remedy that situation is to delete the SMS Messages database from a file management application like FileZ.