Question for Steve: Would it be of use asking for a dump of $sfglobals do you think? Will that give enough information? Or – because this seems to only happen when a guest is using the forum will that not be accurate enough?

you could try a dump of $sfglobals, but he says he cannot make it happen when he wants…   I am actually wondering he is somehow missing an auth…

can you tell me how many rows you have in the sfauths table?  and which sp plugins you are running?

so back in post #12 I asked if you had made any custom permissions or changes to the default permissions…  but you did not answer…  do you know?

I can tell you have to prevent the notice (its not an error), but since it seems like a one off to you, would like to know why…