With my ThinkPad T60p, I have some problem with the integrated NIC Intel PRO/1000 MT Mobile Ethernet (82573L). During the boot process, the Intel Boot Agent of the Ethernet ship, display a "PXE-E05" error like below:

Initializing Intel(R) Boot Agent GE v1.2.31
PXE-E05: The LAN adapter's configuration is corrupted or 
has not been initialized. The Boot Agent cannot continue.

(error message 1)

And after a few second and 2 beep a other error message and you need to press <ESC> to continue the boot process:

ERROR 
Expansion ROM not initialized - PCI on Motherboard
   Bus:00, Device:00, Function:00

Press <ESC> to continue

(error message 2)

To turn off this error message, the first solution is to disable completely, in the BIOS, the LAN interface. Not really a solution :-(

After a call with the ThinkCenter support and some wrong explanations and not really convinced. I made some seek on Google and found THE solution.

THE SOLUTION
The EEPROM of the Ethernet ship need a factory reconfiguration (reset). To make this, I made a bootable CD-ROM, to simplify the procedure, based on a solution found in the thinkpads.com forum...

D