I'm having trouble with my network deployment for Acad2006 I've created an administrative installation which seems to be OK but when i try to publish it with my Win2003 SBS GPO it says "Add operation Failed. Unable to extract deployment information from package. Run Validation on the package to ensure that the package is correct". I am assuming that the package is correct because when i try to modify the install image it comes up with all the right information that i put in the first time round, & then validates it all before the wizard closes.