local networking on 8.04

[archy87]

hi everyone, I've upgraded my 2 computers from 7.10 to 8.04
since then, i cannot share files between the two, and cannot
play local network games (diablo\starcraft)

i've tried samba\smb4k\file sharing, nothing works
i re installed everything related to local networking after upgrading

any help about how i get file sharing back, and how can i play again??

[superprash2003]

firstly, are the 2 pcs able to ping each other?