Hi. when i click the "FTB_Launcher.jar" file my mac then the archive tool thingy tries to "open" the file and ends up with just making a new file called "FTB_Launcher.jar.cpgz" and not open the FTB. I am on a mac and haven't been able to fix this myself. The weird thing is that I was able to play before but then suddenly i just couldn't play anymore. I would be wery glad if someone could help me.