I have my cab running at 640 X 480 on a Sharp Television. I noticed that when starting up MameWah the screen flickers for a second as if the resolution has changed. This also occurs when starting a Mame game under MameWah; the screen flickers for a second before the game starts and also when returning back to MameWah and exiting the program. This is usually an indication that the resolution has changed. I am using a 640 X 480 layout so I don't understand why this is happening. Any ideas?