Hmm. I'm using the same ROMS that work flawlessly on my 3GS, but I get no picture of the games, only the sound and the joypad below. When I switch between 1x and 2x, I get a frame of gameplay, but nothing else. I'm having the same issues with both Snes4iphone and Genesis4iphone. 😕
It looks like pixel doubling makes these games look like they're on an old school monitor. Maybe theres no need for any smoothing effects.
I have EXACTLY the same problem... 😀
only 1 frame of gameplay when switching.