I have two computers with 10.04 on them.
I did as you said.
On Ubuntu computer 1 when I click on Network I see three icons:
2 that look like rack servers, one is a windows laptop and one is that
computer itself, the other icon is Windows Network.

Next I see Workgroup which I click on and then I see nothing from there.


On Ubuntu 2 when I click on Network I get the error "Unable to mount
location: Failed to retrieve share list from server."