I've had this problem for awhile. I am unable to establish a new user account on any portal (root or child). When I add the user sometimes the system seems to accept them but they never show up in the user list. I can view the data and they will be listed there but are never viewed. Tonight I attempted to add a user and recieved the following error:

DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object.  ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Entities.Users.UserInfo.GetProperty(String strPropertyName, String strformat, CultureInfo formatProvider, UserInfo AccessingUser, Scope CurrentScope, Boolean& PropertyNotFound) at DotNetNuke.Services.Tokens.BaseCustomTokenReplace.replaced TokenValue(String strObjectName, String strPropertyName, String strformat) at DotNetNuke.Services.Tokens.BaseTokenReplace.ReplaceTokens(String strSourceText) at DotNetNuke.Services.Tokens.TokenReplace.ReplaceTokens(String strSourceText) at DotNetNuke.Services.Localization.Localization.GetSystemMessage(String strLanguage, PortalSettings objPortal, String MessageName, UserInfo objUser, String ResourceFile, ArrayList Custom, String CustomCaption, Int32 AccessingUserID) at DotNetNuke.Services.Mail.Mail.SendMail(UserInfo user, MessageType msgType, PortalSettings settings) at DotNetNuke.Entities.Modules.UserModuleBase.CompleteUserCreation(UserCreateStatus createStatus, UserInfo newUser, Boolean notify, Boolean register) at DotNetNuke.Modules.Admin.Users.ManageUsers.UserCreateCompleted(Object sender, UserCreatedEventArgs e) --- End of inner exception stack trace ---

Thanks for your help.

Thanks for the response. I attempted switching to the gray, as you suggested, and it made no difference. I'm still receiving the same error message as previously stated. Any other suggestions?