For some reason when I type cui at the command prompt, the cui opens but tells me it is unable to open file '...\...\...ADT.cui'. I've tried opening other cui's to no avail. As a last resort I tried to run a repair on ACA 2008. I'm not sure what more to do, except ask if anyone has a working ADT.cui file they could post to see if I can get it working again? Thanks. Any other ideas would also be appreciated.