(usr-tc) ARC locking up?

Can anyone tell me why when I use the HiperARC software version 1.2.6 software to modify something like users, it makes the ARC "lock up"? Some users can get on and there are green lights on the ARC but I can't telnet into it and most users cannot connect. Something wierd is happening. Any ideas? Thanks, Steve Cobb - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.