Packet Loss -Samba - Pinging

["Mac Martine" <mac@magusdesigns.com>]

Hello. I am new to Linux, so this should be pretty simple.

I have RedHat with Samba and Apache. Then I have a Windows machine with XP.
They are both behind my router/firewall which serves dhcp address
192.168.1.100 and 192.168.1.101.

In XP I can see the Linux machine, and I can successfully ping it by ip,
but:

Problem 1: When I ping by machine name the command prompt appears and
disappears without displaying anything.

Problem 2: When i try to ping my linux machine by ip it gets a reply but
with 100% packet loss.

Problem 3: When i click the icon for the linux box I get the error "Network
Path not found".

Are these problems related? Any ideas for any of them?

Thanks so much
-Mac