Mkay.. so I thought originally that my problem with FTB Horizons was that it could not load... my problem is apparently low memory, after looking at the log... I've tried to allocate more memory, but FTB Launcher only allows me to allowcate a maximum of 1 GB of RAM to Minecraft. Is there any way to work around that? I'm using the 1.3.1 launcher, if that changes any methodology.