I have migrate from ex 2003 to ex 2007 syncronize the PF and also the system PF. then I remove correctly the old server from the organization and all was ok for five days. Now I have problem with free busy. I try reset system folder with the correct MS KB for 2007 but It's all the same. I then remove the PF Store after a restart I create a new different pubblic folder but it load the old incorect configuration. Now the question... Where I can delete the old configuration so I can load a new PF with new correct system PF? Thanks for the answer Agostino