I am a newbie to using YAF and have installed v 1.9.0 (as part of Alterian Imediacy CMS 6)

Seems to working ok but when I add a new user in the Admin section I receive the following error. Scoured the forums but I've not found anyone with exactly this issue:

System.NullReferenceException: Object reference not set to an instance of an object.

at YAF.Pages.Admin.reguser.ForumRegister_Click(Object sender, EventArgs e)

at System.Web.UI.WebControls.Button.OnClick(EventArgs e)

at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)

at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)

at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)

at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)

at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Any ideas? Would be really grateful.

Thanks

Justin