Go SMS and physical keyboard

When I use go sms with the physical keyboard on my droid 1, once in a while when I hit the "a" key, it highlights everything I've typed and the next letter wipes it out. It only happens with go sms, standard messaging and gmail don't have the problem. I'm rooted and it has happened on every ROM. If I leave the message thread open, it will happen after 4-5 messages. If I go back to the inbox and re-open the thread, I can get another 4-5 messages before it happens again. The soft keyboards (ultra, gingerbread, stock android) don't have this issue at all. Real annoying if I forget to go back to the inbox and type a long message that gets wiped. It sometimes happens on the first "a" in the message, sometimes only after I've typed for 10 minutes. Any insight would be appreciated.

David