Hi all, I am running a yang vmc with a fanuc om g controller and it wont tool change in mdi mode, it will however tool change if running a program automatically. I remember years ago having a similar problem and was to do with missing a program O9000 that was locked in the controller. I am relatively unfamiliar with fanuc controllers, does anyone have any idea of what I may be able to do to both program this and get it into the controller? Thanks in advance for any help, jimmy