carbon build hangs on startup

[Cyrus Harmon]

For the past month or so, on macos (intel/10.4.10) carbon builds from  
the latest CVS source hang on startup. Has anyone else tried/seen  
this? Any suggestions? I'd be happy to provide more diagnostic  
information if that will help, but I figured I'd check and see if  
this is a known issue first.

Thanks,

Cyrus