Help Droid 2 Voicemail issue

Ok my Droid 2 up at the top on the home screen where you can pull down to see the notifications, the voice mail symbol is still up there but no voice mails and i can't get rid of it! Can somebody help please? I even tried hitting clear on it and it wouldn't go away, I restarted the phone and nothing. Took the battery out and nothing! I don't know what else to do! Please help! Thanks.