Hi everyone, My center just started us on the diad IV today which I really wasnt too impressed. Besides the shifting between numbers and letters, the board froze up a lot, the battery didnt make it through an 11 hour day, and it would hold messages sent to the center for about an hour and send them all at once. When I got back in, I heard the same stories from many other drivers who's batteries died, boards froze up, and some even complained the shift button didnt work at all. We had 4 drivers actually punch out a minute before 12 hours with quite a few stops all placed as missed. Is this what is to be expected now? If so, bring back the older diads, I had no problems with them.