Linksys Wireless-G card with Wireless-B router cant connect

[rockstarwallyMYAPPENDIX]

Greetings.

I'm pulling my hair out. I have a Linksys Wireless-B router with two
laptops, one's running a B card and one's running a G card.

When I first set everything up and it was unsecured both laptops could
connect to the router. But when I added WPA with a key the B laptop
connects but the G can't.

I've gone through everything that I know of and can't find where the
problem is. The network name and key are definitely the same although
they are both long random alpha numerics. Is there a trick to getting
the G card to talk to the B router?

Please help before I go insane.

tia
d

 

[rockstarwallyMYAPPENDIX]

Last night I removed the G card and installed the B card. Then I used
the USB flash configuration to add the computer to the network. Still
no go so it's not the G or B card question. Something about the way the
one computer is configured doesn't let it connect to the WPA network.
Both are XP Pro SP2 machines. Both are linksys cards with a linksys-B
router.

Still looking for help.