D-Link DWL-520+ drivers not working with Win98se?

This one has me confused. I have a D-Link DWL-520+ wireless NIC. I so far
haven't been able to get it working properly with Win98se. It worked on a fresh
OS install, but started giving a "not working properly/drivers need to be
reinstalled" message when I did a couple basic OS updates. I tried using it on
an already-updated Win98se machine and it never worked. Works like a charm in
Win2K Pro.

Anyone have any idea what's going on? I've tried different drivers, three
different computers, methods of installing, all sorts of things. It seems like
it won't work at all with an updated install of 98se. IRQs and other resources
are fine.

Thanks

John