Upgrade problem

[Stephen Liu]

Hi folks,

Ubuntu-6.06-i386

While running "apt-get upgrade". Firefox crashed making the PC hanging.
 After pressing force-reset to reboot PC, I can't run "apt-get upgrade"

$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree... Done
The following packages have been kept back:
  linux-image-386 linux-restricted-modules-386
0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.
* end *

Running "sudo dpkg --configure -a" and "sudo apt-get update" did not
help.  Please advise how to fix the problem.  TIA

B.R.
SL