This is really starting to drive me nuts - yes, I have read through all of the threads like this one and I have tried everything. I went through and marked all prior opened, I sent myself an email to see if it would clear, I even did a battery pull and the notification WILL NOT GO AWAY. Someone help before I throw this thing against the wall!
Posted from my CrackBerry at wapforums.crackberry.com
There's generally 3 "notifications". SMS/MMS, Email and Messages. If you checked the email, and you're sure that was the original, then go toy our "Messages" folder.
Anytime I miss a call I have to check the call, the message folder, and then VM if its left to clear the icons out.
Go into EVERY folder and hit the U (for unread) button. Check all folders including hidden ones, saved messages, missed calls logged in message folder.
If you have your general Messages folder hidden (Menu-Show All), check there. As stated above, PIN messages only go to that folder.
Make sure you have no alerts such as weatherbug, facebook, calendar, bbm, aim, yahoo etc.