win 98 lost connection to local network

I have a win 98 system connected to my w2k system.
Everthing was working then one day I cannot connect to my
w2k system. I can see and access the win 98 system but it
can not see or print to my shared printer. I cannot get
my neighbohood places to find the win 98 or w2k computer.
it just shows a blank area where the computers would
show. Also it does not show the Entire Network.

Any thoughts or sugestions.