XP Pro, SP 2

Symptoms:
Can't...
Browse or poll email from Internet,
PING URL's ("...could not find host..."
NSLOOKUP (can't resolve ISP's DNS server names)
(can't find ISP's DNS server IP's)
Can...
Be a working peer in local net (behind firewall)
PING IP's (anywhere!)

Already tried...
Resetting TCP/IP with: netsh in ip reset

Note...
Other machines geting thru firewall fine. Have tried
this machine on another network and it has the same
problems.

Interesting...
IPCONFIG /ALL: Mode is "Hybrid", not "Broadcast"

Thanks for taking the time to help. I'm baffled!

Can anybody help me?

Jean Janick