This is a pretty interesting one. Client called and said that a user is getting an error on login. The error message said "You don't have security privileges to open this window." The window pop-ed up before the homescreen finished loading. The user can click OK and move on.
I followed a blog post (http://blogs.msdn.com/b/developingfordynamicsgp/archive/2008/11/17/how-to-resolve-security-errors-on-login.aspx
) and discovered the cause: The user did not have access to the Report Schedule window. I granted the user the task and now when they log in they do not get an error but the Report Schedule window.
However, they are not supposed to have access to this window. I cannot seem to find how to surpress it on login. I've looked through the documentation and it does not mention "login" or "pop-up" or anything of that nature.