Game will launch but then freezes

Recently I setup ISBoxer for my first time, followed the wiki. I'm trying to go with a 3 box setup ran from my main computer with a 2nd monitor for the 2 & 3 screens. All 3 clients will launch and I can login fine, although it seems to take a long time to go to the character screens. Once I select the characters and go "in world" it loads and then stops / basically freezing. I can't move, escape or anything. Only way out its to crtl alt delete out of it.

If I have ISBoxer & innerspace off, I can load up two clients fine (no way to control both at once, but they load fine). Any idea's? Help?

Thanks!