I just received my GP2X F-200 from Dynamism today and put brand new fully charged 2500 mah NiMH batteries in it that had been charging all night and the unit worked fine and the screen was very vibrant for about the first two minutes and then the screen got very dim and then soon after got so dim and blurry that i could hardly read or make out much that was being displayed. I then inserted another fully charged and brand new pair of 2500 mah NiMH batteries and it worked fine for another minute or two and then became dim and blurry. I inserted yet two other pairs of fully charged 2100 mah batteries and the same thing occurred. It happens somewhere between 1-5 minutes after turning it on with fully charged batteries. The unit is brand new and is running firmware version 4.0. I tried going to the settings menu and selecting LCD to see if there were any options to change and all that comes up is a single message in the center of the screen that is in Korean. I was so happy to get this but now since it doesn't seem to be working properly I'm rather bummed. PLEASE HELP.