Alright, so I've been using MUSHClient for about three months now, and it works extremely well. However, I encountered a problem today, when, all of a sudden, I got this message:
The application failed to initate properly (0xc0000005). Click on OK to terminate the program.
Now, this is somewhat frustrating because A.) I can no longer play Lusternia until I fix the Client (I can't us the Nexus Java version for some reason), and B.) It was working perfectly fine two hours ago.
Other than that, I don't think I can offer any more information, so, to be blunt...
Does anyone know how to fix my little problem?

I'd try first rebooting the system, if you haven't already. Could just be some faulty process or chunk of memory. If that doesn't do it, I'd backup my MUSHclient settings, uninstall the application, clean out the entire directory, and then reinstall.

Ah, I'll try that. Thanks very much for your help!