Turn on the log all function of cmes (LA,CON) and reissue the command to determine if CMES is choking on the UP command of the AF,PP command. I imagine it is unhappy with the AF,PP,/\\ part of the code. Try AF,PP, with an axis (X,Y,Z) and see if he likes this. What version of CMES are you on? Duncan will need to know this if there is a version problem.