I am getting crazy, I can't find what causes the problem. It just happen, People post and when the click reply they get "username does not exists" and the switch has been made.
It keep getting mixed up, I did what Mastermind told in the other thread about the member mixup, but it still happens, I guess I have to get back to a clean install.
Most of the time it is the same member number that screws things up
I have disabled Jimbo Status and... the invitation option of the chat hack and it works well...
I have reinstalled the jimbo custom status and it works... i guess it comes from the "invitation" script of the chat, but it seems to be very strange ??? maurice could you try to disable this option and see what happens ?
I have Chat Mod with Invitation option enabled. The forum has about 2500 members. No problem so far. I have all the mods that you mentioned (plus some more) installed on the board, except "Calendar".