Forums mIRC Help Can't join channels with new mIRC

I just downloaded and installed mIRC v6.16 (and actually registered mIRC for the first time!). I can connect to servers just fine, but every time I try to join a channel I get the message *1 No such channel.

Umm... help? mIRC doesn't do me much good if I can't actually get into any chat channels...

+--Redeemer--