Thanx, everyone. But rebuilding setting files new user etc. did not change a thing. No AMA files in use. I checked on an older System with 7.3 and 8.1 Same result: All projects working fine in 7.3 and in 8.1 all but the one that I am currently working on. It must have something to with with the project structure in combination with 8.1 even if I only