[c-nsp] Problems doing NPE upgrade

[Roy]

A client has a 7206VXR that we are attempting to just upgrade the NPE.  
When we replace the NPE-300 with an NPE-400 we get a crash loop during 
the boot.  The OS we are using is

Cisco IOS Software, 7200 Software (C7200-P-M), Version 12.4(8d), RELEASE 
SOFTWARE (fc2)

Console log follows.  Any ideas welcome.

Roy

-----------------

System Bootstrap, Version 12.1(20000710:044039) [nlaw-121E_npeb 117],
DEVELOPMENT SOFTWARE
Copyright (c) 1994-2000 by cisco Systems, Inc.

C7200 platform with 524288 Kbytes of main memory



Self decompressing the image :
##########################################
################################################################################
################################################################################
################################################# [OK]



%Software-forced reload

Nested r4k_return_to_monitor call (2 times)


-Traceback= 0 602BE8D0

Nested r4k_return_to_monitor call (3 times)


-Traceback= 0 60338694

Nested r4k_return_to_monitor call (4 times)


-Traceback= 0 60338694

Nested r4k_return_to_monitor call (5 times)


-Traceback= 0 60338694

Nested r4k_return_to_monitor call (6 times)


-Traceback= 0 60338694