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Launcher Version: 253 Operating System: Mac OS X Lion Java Version: jre-7u25 Antivirus Program: I don't run a Antivirus program Description of Problem: I recently downloaded this launcher and when I got it and I clicked on Launch on any of the different modpacks all the files downloaded and the minecraft.jar and everything but after it was done downloading there was just a white windowed screen and in front a little loading tab that said FLM or FML and then everything just disappeared. I tried many different things to fix it from completely deleting the file and redownloading the entire thing to redownloading Java but it still does the same thing over and over again, could someone please help me!! Error Messages: Error Log: