I have two HP servers that are locking up about twice a week. HP is stumped and no hardware problems have been found. There are no errors in the event logs. When I look at the server I can usually perform one action before the screen goes to a blank background, such as pressing CTRL-ALT-Del to try to login. The server will set there for hours locked up with no change. When it is locked up you cannot do anything to it from the network such as see file shares or remotely manage it. One server is running Windows 2000 and the other 2003. The only thing they have in common is that both are fiber attached to our SAN. I am out of ideas, any help is appreciated.