Problem my message does not appear in the right place !
When I send a message at someone, it appears above the message just sent me ! So when he sends me a message and I answer, it appears above its message !
Did you check the time/timezone on your phone to see if that is correct? If that is the case, you may need to switch off your phone, remove the battery for a few minutes (if possible) and see if that solves it :)