I tried switching my norton firewall program off to see if that would help, but it's still rejecting any possible connection, it's very strange.

Unless, of course, I've change something in the options menu on mIRC that I shouuldnt have, and don't know what the default setting was in the frst place. Thats the only thing I can think of that I couldve done to upset the program, but Im pretty sure I haven't touched anything