Frontpage / NT permissions

Here’s the deal. NT 4.0, frontpage 2000. IIS 4.0.. I create a user that belongs to the domain users group. I create a web in IIS, with clear text authentication checked (only one checked). When i open it in frontpage (as the administrator) and give the new user administer and author permissions, he is not able to open the web in frontpage. If i move him into the administrator group, he gets in.. He has permission to the web, but for some reason he’s not getting in.. what the heck am i doingwrong?