Since this morning I'm not able to launch Mathematica (vs. 8.0.4) on my Mac (OS 10.8.3). Every time I click on the icon Mathematica opens the "Messages" box without any messages. After some seconds my Mac is telling me that the program was unexpectedly closed.
It sounds wired and indeed feels this way because when I shut down my Mac last night Mathematica was running just fine. My license is still active as well. Does anyone have/had a similar problem. Any ideas are more than welcome. Thanks in advance.