I have bcm 450 I just installed every thing went fine but while doing some target line assignment I entered a receive number that I guess was on another target line , Element Manager locked up with an error message box invalid DN and the retrieving date box stuck on the screen. I have tried to disconnect but with no luck so I end task to get out of the program and when I log back in it is still stuck on the same screen. Element Manager is still stuck after 6 hours. I'm I hosed or do I need to hard boot the switch since I can not shut down or reboot from Element Manager? Please advise. Thanks in advance.