I have a frustrating problem with some of my public folders. I am trying to associate a form with one of them and I receive the error "The form could not be installed. Unknown error". Also if I try to post to the folder nothing happens i.e. when I click post the screen refreshes but the item remains open and nothing is posted to the folder. This is in a testing environment which has undergone an upgrade from Exchange 5.5 to Exchange 2003. I checked the permissions for any zombie accounts but none exist. I have even set the permissions to default owner but this does not help. To confuse matters not all folders have this issue just the odd one. They have all been migrated in the same method. Currently the Exchange 5.5 environment is up and running still however all replicas of the folders are on the Exchange 2003 server. The home server still reads one of the 5.5 servers. Has anybody come across this before or have any suggestions? Regards, Tim