Unity crashes on startup

since yesterday (everything was fine before) unity refuses to start on my g5.
when i run it through the terminal after showing me all that gl-stuff it just says:

Code (csharp):

1.  
2.  
3. =================================================================
4. Got a SIGSEGV while executing native code. This usually indicates
5. a fatal error in the mono runtime or one of the native libraries
6. used by your application.
7. =================================================================
8.  
9. Stacktrace:
10.  
11.      Abort trap
12. logout
13.  

i haven't changed anything in my system. should i update my machine with some monoframeworks? i don't know.

edit: now i remember something. i used monolingual http://monolingual.sourceforge.net/ to get rid of all the intel-code. could that have killed mono?

 

already tried that.

a sucsessfull start looks like that (my nokebook):

Mono: successfully reloaded assembly
colmatmode 5

 

http://forum.otee.dk/viewtopic.php?t=1983

Looks like Final Cut Pro 5.1 kills Unity.