I'm using 0818 as well. I just tried then and it changed to only displaying to half the screen. With the touch being disjoint. I'll follow back to my config changes to see what made it unplayable.
EDIT: try switching your screen to 4x4 icons for the desktop. This fixed it for me, and allows me to play a lot more games. For some reason increasing the desktop icons amount also changes the frame-buffer that games write to. Strange one.