Just picked up a used DX for my Girlfriends son. He does a lot of gaming and has been having an issue when he closes a game and occasionally during other times. Once he closes the game, the bottom row of icons with the exception of the one icon on the far right are missing. The only way to get them back is to reboot the phone.
I saw one post where someone suggested long pressing in the area and choose launcher. I havent tried it yet and im wondering if this is a known issue with some DX's or not so much. I have a similar issue with my DX but im running the Vortex ROM and it only happens once in a great while. His phone is all stock.