I'm using version 5 revision 11. The drilling procedure works as it should until I recalculate a tool path. After recalculating any tool path, if I try to run the drilling procedure it will only get as far as selecting the circle. After pressing enter the popup screen does not appear and the command prompt comes back up. The only way I can get the drilling procedure back is to restart rhino so that MadCam reloads. Am I missing something or is this a bug?