samba issues

There were some issues with Samba and Windows using "Allow Everyone" shares. R's problem was that his Fedora box had a samba share which he wanted to "Allow Everyone" - configured with the gui, didn't work, with Windows clients getting a forbidden message. Googling with

samba share fedora all everyone

found http://www.linuxquestions.org/questions/showthread.php?t=469209 and passed it on to R. R just added a samba user with the gui and it started working. Apparently his box just had root and no other users, and samba root login was banned.