I absolutely detest the carousel style launcher on the fire, so I tried installing a different launcher (GO LauncherEX) and my fire froze up and showed nothing but a black screen after i had changed GO Launcher to the preferred launcher. I held the power button, shut down my kindle, but after turning it back on, I never get past the sparkling 'kindle fire' text. My computer doesnt recognize it as any device so i cant re-install the OS. I have no idea what to do. Suggestions?