I am on mIRC on my network, and decide i want to visit another network. I type /server -m NETWORKNAME and it says "Unable to Create Socket". Why is it doing that. I have to open up another mIRC window just to connect to that network. I cant be on more than 1 on the same window.

Funny how no one knows this?

You have a version of mIRC later than 6.0? Preferrably the latest version (6.16 atm)... mIRC prior to 6.0 have no multi server.

Try /server -m irc.network.com (well, an actual existing server of the network you want to connect to) instead of just /server -m networkname. Maybe your mIRC doesn't have a lmist of servers for that network?

Do you have a clean mIRC downloaded from www.mirc.com or did you download it from somewhere else? Do you use full scripts or addons?
You can try downloading mIRC again and install it to another folder to see if that version has the same problem. If not, then it's a problem with your settings or with any scripts you installed.

If that doesn't help, well, then you have something strange going on...