just got a sd2snes from retrogate and plugged in my wireless controller. first thing i noticed was it wouldn't boot. decided to remove the controller and after a reset all was good. tried plugging in the controller again and the image got distorted (flickered in waves). so only wired controllers prevent it seems. anyways all games have a wavy like image whenever I try to play it and when i tried to test the sd card via the diagnostics screen the screen went crazy like when the wireless controller was plugged in. I'm using an aftermarket power supply so could that be the issue? it seems anything that might use extra power is causing the problems but the games still run so its confusing me.