Try instead to change it to be prompted (by the browser, not by the QlikView Server) when a site requires credentials. To do that, go to the Control Panel, Internet Options, Security, Custom Level, Security Settings, User Authentication, and check Prompt for Username and Password.
Hope that helps.
Thanks for the reply Miguel.
I cant make that change as indicated in my post, those settings are governed by a system-wide group policy.
However on the Qlikview server itself where this setting is the same as my PC i.e. "Automatic logon only in Intranet zone" and where I am actually logged in as the Admin/service account, the behaviour is as expected:
1) If I just open Access Point, it logs me in as that admin account - correct behaviour
2) If I run IE under my own user account, by launching IE with the "run as another user" option from the context menu, after holding down shift and right clicking IE, THEN launch Access Point - it logs me in as my user.
When I try both of these on my own PC, BOTH times I am logged in as the system admin account, even though I am logged into my own PC as my own user account.