Buffalo PCMCIA

I am trying to get a Buffalo WLI-PCM-L11GP pcmcia card to work under WIN98SE
with WEP enabled. The AP is D-Link DWL-900AP+ with the latest firmware. The
Buffalo drivers are 3.94 from the Buffalo web-site and work perfectly if AP
is set to Open, but when I try to set to Shared mode with WEP key, the
client cannot connect.
WEP key and SSID are entered correctly and card is OK as tested in a WIN XP
machine with wireless zero and works a treat.
Thought problem might be Buffalo's Client Manager, so tried Cirond's WINc
but this won't recognise card. Has anyone got WINc working with this card?
Has anyone got WEP working under WIN98SE with this card?

Thanks in Advance
John C