I have a Radio Shack 3V-12V 1000mA adapter with a tip that fits the GP2X.  Normally I would not hesitate to use it, but for some reason I only get a little garbage on the screen and no backlight if I try to run the GP2X with the adapter set on 3V.  When I set it on 4.5V it works fine, but I am worried that might damage my system in the long term.  Help?
				
			
	