After spending a while setting up about 15 emulators, all configured to retroarch except 1, which was setup up with another emulator. All was working perfectly. Until today. i click on the console, select game, it goes to boot up into the game except all i get is a black screen. I tried all of them inluding the non retroarch one. the only way i can get a emulators to work is i press, select a random game, and they all seem to work via this. Any ideas would be appreciated.