Need some help with wpc54gx4 and Dell C640

I just purchased a Linksys wpc54gx4 card and have tried to install it
on both my c640 and laptops. I installed software on the C640 and the
adapter worked fine until I rebooted the pc. The laptop froze on
bootup. When I pulled out the card the pc continued to boot. After
the pc was up I put the card back in then my laptop froze. Once I pull
out the card pc runs normally. On the other c640 the install hangs and
will not finish. I have downloaded the latest linksys drivers and it
did not help.

Both systems are running Windows xp pro sp2. Both machines have the
latest bios upgrades. I am sort of at my wits end with this. It
appears to be some sort of irq conflict, but I cannot figure out how to
resolve. Hardware is not my strong suite!

I contacted Linksys techsupport, they told be to turn off the Firewall,
I guess they don't get the fact that it is not a connection issue.

Any advice would be appreciated.

I have the same issue with my Dell Latitude D600. However, once I
un-docked the laptop, the card worked just fine. Most likely a
hardware conflict.

Re,
Bob