ExSimGuy. Here is what my tame boffin said about your problem.
"His best plan is to have a hosts file in the Windows directory with name resolution for his RAS server. There are some very useful newsgroups on news.microsoft.com with expert advice being given. I currently subscribe to the Small Business Server 4.5 and 2000 ones and find most of the solutions I need. But RAS often needs a hosts file and an lmhosts file. He may also find that logging onto his Win98 with the same user name and password that he logs onto the server helps too."
Good luck