Cannot browse Internet:Win2k laptop connecting to NT4 RAS server

[DennisAtWork]

Cannot browse Internet when dialed in to NT4 RAS server from Win2k laptop. Win95 laptop can browse the internet no problem when dial in to NT4 RAS server when same user is logged in. We have a Microsoft Proxy server and a Linux firewall.
The Win2k laptop can ping internet addresses and web pages by url (ie

http://www.symantec.com)

but it can’t browse using Internet Explorer.

We have:
NT4 Domain structure on local private IP address range (10.1.180.x)
My Win2K laptops use DHCP which is located on one of my BDC’s.
The RAS server has entries in it’s NIC pointing to the local WINS and DNS server.
The RAS Server assigns IP addresses through the local DHCP server
The Win2k laptop has an Lmhosts file local with entries for the DNS and WINS servers.
The Win2k laptop has the proxy server settings in Internet Explorer.

Please Help.

Dennis