Anytime you try to loop through a large channel's list of users in order to /cline people based on things like away status, it will take a long time and will freeze mIRC. The way around that is to do the coloring in parts... say nicks starting with A-F immediately when you join, then wait 2 seconds and do nicks G-M, etc. Something like that should prevent the freezing, though it will make your nick coloring take longer. Alternatively, you can use /cnick for things that may not change (such as op/voice/etc status). I think we went over that before.
