Hi guys, i'm really new here. I need some help. Im having this problem on all my modpacks, i have 64 bit Java and 2 gigs of ram allocated for the mod and every time i press play the launcher disappears for a second and then comes back. The game never pops up, just the launcher. I really need help on this. I've looked at all the tutorial videos but i already have 64 bit java! I've looked through the forums and i still couldn't find an answer!