I was upgrading a 406 form 3.2(67) to 4.1(15) and the system went into a constant reboot. I realized why it did it, i had all the phone still plugged into the expansion modules and the all the phones were trying to download new firmware at once. I changed out the 406 and now im trying to dte the bad 406. I open hyperterminal and adjust the settings, but when i go to power up the unit and hit the esc key my laptop turns off. Any reason why?