A small business near me has Internet supplied by Time Warner Cable business class. That modem feeds a 16 port ethernet switch.
Four PCs are connected by cable to the switch. Three of them (the 7's) see each other no problem, whether as part of a home group or not. None of them can see the XP machine. They have all been set up as part of a Workgroup (that's what it shows when I go to the computer name dialog). I've turned off firewalls.
I really just want to access a printer installed via USB on the XP machine. It is shared and works on the XP machine but I can't see the XP machine or its shares no matter what I try.