Someting on this Laptop is blocking power to the PCMCIA slot, HELP!

I have three laptops what have about the same issue.
We use Verizon Air Cards that use the PCMCIA slot. Verizon card model number
PC770 if it matters.

I had a Dell laptop that was doing this and Dell ended up replacing the
mother board as it seemed it was a hardware issue.
With the new mother board in there was still no power (no lights on on the
card) to the card.
Ended up deleting the partition and reinstalling XP.
The card now works.
Did the same to a Dell PC Monday. Reinstalled XP from scratch, cards works.

I have a Panasonic Toughbook I'm having the same issue with.
I really don't want to have to reinstall the OS as it's has a number of
specialty apps our mechanics use, and I have to send it off to be reimages
as a result. I don't have access to the apps...

Anyone run across this issue and found a solution?
Anyone have any idea how to get this resolved?

I can take a known good card and put it in my laptop and it works, put it in
the laptop in questions, doesn't work.
Take the card that the user had been using and put it in my laptop and it
works.

Very frustrating.

Any help would be much appreciated!

Kelvin