I have 3 x 3Com SuperStack 3 3870 switches. The old Network Admin left way before I came on board and no one knows the admin password. How can I recover or reset the password in order to reconfigure the switches? I have tried the 3comcso login with the RIP000 password through a hyperterminal but it does not work. I have also tried the recover feature but that does not work either. I cannot locate a reset button and I cannot find the firmware without signing a maint contract with 3Com.