Wirelessly posted (iPhone 3GS: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8G4 Safari/6533.18.5)
MOde 1, mode 2, and mode 3 make the display, display different things.
Mode 3 is a better settting for you it seems. It will only show the talkgroup ID and doesn't flash back and forth
Mode 2 flashes between the radio ID and the trunked talkgroup IIRC.