I have two 2003 Terminal Servers running NLB and Session Directory. Everything is working the way it's suppose to except there's one small problem:
When both servers are running, IE on both systems are unable to completely open certain websites. The title bar of the website does appear, but the body never opens and IE continues to try to load the page without success or error. But when I unplug the second server from the network, IE on the first server works normally.