Just picked up my Galaxy S3 from TMobile about 2 weeks ago now. Love the phone, but I received an over the air update from TMobile the other day. Now whenever i'm in the midst of writing a text message, if another message comes in at the same time, it automatically closes my keyboard and i end up pressing into previous messages. It's really annoying when holding multiple conversations. Is there a setting I can adjust, or roll back to the previous setup, before the update?

I've already rebooted the phone, tried deleting conversations, closed the app, pulled the battery...but nothing.