Compiz crashes

[zombifier25]

A few days ago, I was running Unity when suddenly it crashes. Now I can't launch Unity/Compiz anymore. It simply gave a segmentation fault and gave up. Can anyone help me diagnose the problem? It's really annoying me.

[zombifier25]

OK, I suspected that the fancy new cursor theme that I applied system-wide had something to do with it (because of all those LibXCursor errors on unity --debug), so I reverted back to DMZ-White, and Compiz ran again. :|

This question is still open to instructions in debugging the error.