Some users of EQMac have reported that the last couple of versions have been crashing on exit on Snow Leopard and possibly Lion. Unfortunately I haven't been able to replicate the problem on my own computers. However, I have discovered with the help of others that my recent switch to Apple's latest compiler tools has produced the problem. I will therefore be producing future versions of the software using slightly older tools which seems to resolve the problem.
If you need access to a non-crashing version sooner than I manage to release the next version, please let me know.