CANNOT "OPEN" REMOTE COMPUTER ON NETWORK.

Hello! I am setting up a simple peer to peer wireless ad-
hoc network between a Thinkpad R40 with Win XP pro and and
Micron desktop with Win 98SE. All seems well as the Micron
can send files to the Thinkpad. The thinkpad "sees" the
Micron on the workgroup network and gets ping responses
back from it. But when I try to open the Micron
named "Desk" from the Thinkpad, I get a message that says
something like "DESK\\" is not available on the network or
you do not have access or privleges to access it."

I have file and printer sharing enabled on both computers
along with Client for Microsoft networks.

Help!

Thanks,
Jim D.