Picture Mail- getting stuck in Outbox?

[BlackDynamite]

So, I have the Sprint PPC-6700, with the updated ROM (AKU2). I installed the picture mail have several months ago, and did the registry hacks and all that stuff to make it work. It was working, and I didn't really use it that much. Anyway, recently, I noticed messages (picture mails) were getting stuck in my Outbox. If I send/receive, it just says finished, and the message is still in the Outbox.

Anyone else seen this? Anyone know what might be causing it?

I've tried sending/receiving while on the internet, with a good EVDO signal, and get the same problem as when I'm not on the internet.