Can't share files

Hi there,
I need some helps with my network connections...Here's the problem:

I'm currently using sympatico High speed edition(Dsl)
Both of my computer is using WinME and this is their specs:
Duron 700
Pcchips M810MLR mobo (onboard lan)
64 sdram PC100

and my second computer
T-Bird 1.2
Asus A7V133
512 sdram PC133
D-link 10\100 network card

Both is connected to a D-link 5 port Hub 10\100

I connected them to the Hub and it worked just fine...after sharing a couple of files...Then on my T-Bird, it always freezes or takes several minutes to view My Network place and on the Duron, everything was ok.
Now it doesn't lock up but on my T-bird, it cannot access the Duron's files even though it worked b4 and I already configured the Sharing options.
Any help would be appreciated!
Thx in advance

i already tried that
but didn't work
so I'll just format both of my computers and hoping a clean install should fix some bugs ^_^~
Thx for ur suggestion