Windows 2003 PPTP (RRAS Server) and OS X


I have home LAN with 4 pcs and one mac OS X laptop (panthar). It is fully patched. The home LAN is DHCP from a linksys router, all the PC's can connect fine and access resources (internal) on remote network. The MAC laptop can VPN and authenticate just fine on teh Windows 2003 RAS/PPTP server, get an IP as well, but that is it. I can not ping or access exchange 2003, ping/trace route/ or nslookup. Any ideas what I need to do on the mac laptop? I am not a mac expert by any means so prob missing something basic.

Stephen :(