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FTB Launcher version (if this isn't the newest update update and try again): 1.0.6
Minecraft Version: 1.4.2
Java version: Version 7 Update 9 (build 1.7.0_09-b05)
Detailed description of the issue / how can the issue be recreated: When trying to launch the FTB launcher, it opens up a black minecraft screen, and after a few seconds this crashes.