Cisco PIX 520 not taking ESC key from console connection

Using TeraTerm or Hyperterminal with VT100. I am not able to use ESC key or
Ctrl-Break to break the boot process to go into password recovery mode. Does
anyone have this problem or solution to this?

thanks,

                     || ||
                              |||| ||||
                          ..:||||||:..:||||||:..
                         c i s c o S y s t e m s
                        Private Internet eXchange
  -----------------------------------------------------------------------
                        Cisco Secure PIX Firewall

Cisco Secure PIX Firewall Version 5.1(4)

Licensed Features:
Failover: Enabled
VPN-DES: Enabled
VPN-3DES: Disabled
Maximum Interfaces: 6

  ****************************** Warning *******************************
  Compliance with U.S. Export Laws and Regulations - Encryption.

  This product performs encryption and is regulated for export
  by the U.S. Government.

  This product is not authorized for use by persons located
  outside the United States and Canada that do not have prior
  approval from Cisco Systems, Inc. or the U.S. Government.

  This product may not be exported outside the U.S. and Canada
  either by physical or electronic means without PRIOR approval
  of Cisco Systems, Inc. or the U.S. Government.
Received on Thu Sep 29 19:53:04 2005