Stupidly big monitor crash

So, we run a private tekkit server, and since we've only had it for a while, there isn't any backups…
So when tekkit updated to 3.0 it added the CC monitors at last! While testing them, my friend suddenly had the bright idea of using worldedit to create a 50x120 monitor… This caused the whole server to crash, and now the software crashes every time we try to run it. Any ideas on how to fix this?

Remove ComputerCraft temporarily by moving it from the folder then start up the server - then put it back. It should then be fixed, but you'll lose all computers and turtles on the server. It's either that or you use MCEdit to remove the offending blocks.