Strange error

[john]

My reliable 486 recently died and i was going to replace it
with a IBM Aptiva pentium 133 model 2176-C33 i took the
nics out and put them in the IBM and on boot-up i get an error
"nat error: unable to malloc active tunnels" it continues the
boot pocess but it obviously dont work i took the cards and
disk threw them in an old Packard Bell P100 and it works fine
any thoughts on whats causing the error? Id rather use the IBM
if i could.
Thanks