Go Sms Pro: "Too many unsent multimedia messages" error Every time I try to send a Multimedia message using Go Sms Pro, I get a 
toast message saying: "Can't send message right now. There are too many unsent multimedia messages"



This doesn't happen when I send something through gomms (which is really only good for sending to other people with smartphones), and it doesn't happen when I use any other sms/mms client (like handcent or the default sms client). It only happens when trying to send an MMS message with Go SMS pro.

How can I get this to work? I would have thought that if this was a global bug issue, that it would have been fixed by now, so I am guessing that there is something I need to set/reset. What do I do to fix this?
This has happened to me at least once before. Very annoying. In my case I had to check every thread, and scroll up to look for failed mms messages in the thread(red !). Once one fails, apparently nothing else except regular txt will go through until the offender is deleted for some reason. I think I narrowed it down to a message I sent from my garage. With the doors shut and if I'm in the back, I get one signal bar if I don't move. I think I attached a pic, hit send, then stuck it in my pocket while it was trying to send. Why it doesn't send later when i get a better signal is beyond me. But, by checking all my threads, and deleteing each one the had a red ! eventually I was able to send the one I really needed to send. If it happens again, I'll update the post with more solid information.
Phone is G'zOne Commando, Android version 2.3.3 hope this helps someone.