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Make sure that the launcher is put in the correct directory, your starcraft install directory, no other instances of starcraft are running and that you have selected and customized all the map options rather than simply clicking launch on the 1st screen.
Make sure that the launcher is put in the correct directory, your starcraft install directory, no other instances of starcraft are running and that you have selected and customized all the map options rather than simply clicking launch on the 1st screen.