Hello- I am trying to set up my networking in my apartment. I am running a linux computer with Mandrake 10.1 and the other two computers are running XP. I Finally got samba to work so that I can access my linux computer from my XP computer but when I click on "search new servers" it doesn't find any of my XP machines. Sometimes one will show up but not the other or sometimes not at all. Any suggestions would be great. If it makes any difference the linux computer is wireless, one XP machine is wireless also, and the other XP machine is directly connected to the router. Thanks again for the help.

It could be the Windows XP firewall. I think its turned on by default for all network connections, and will block access to *all* ports.
You could just turn it off (but this would leave you much less secure) or alternatively, if you get XP Service Pack 2, you'll get a better firewall that gives you more precise control. I'm not sure which ports you need to open, but I think there may be an option in there to enable Windows Network Shares (or something like that). Turn it on, and you should be OK.

Of course, its possible that its nothing to do with firewalls at all. Can the two XP machines see each other?