I have three Citrix 1.8 SP4 servers (Win2000 SP4) and one of them is acting very strange. After the users type in their username and password and hit ok, the screen goes blue (like the background) and they never log in. It seems to be hit or miss. If I tell them to log into one of the other two, they log in with no problems. Some users can log in to it (30) are on at the moment, but these users also experience the problem once in a while. Any troubleshooting tips or KB article I can look at? It's getting very annoying. I did notice last week when people were logging on, they were getting an error that Windows couldn't load the profile and to resize the registry MB. After looking at the registry size, it was at 80MB with a 120MB limit. For fun I upped it to 200MB and that message went away.