I have a license for RubyMine that's current through 5/2011. I downloaded RubyMine EAP 96-552 for OS X, copied it to my Applications directory (next to RubyMine 2.0.2, which works perfectly), and tried to run it. The bouncing RubyMine icon briefly appears in the OS X dock, then disappears, with no message at all. (RubyMine 2.0.2 isn't running when I'm trying to run RubyMine 2.5 EAP.)
Can you point me to what might be going wrong?