I just double checked, 2.61 on one machine, 2.57 on the second and the latest development version on the third and all three seem to be having the problem . The one with the latest version .008 I havent run a full program with after the g76 on this paticular machine but when I type in g1 z** f1. in the MDI line the z axis moves at 600IPM , which is quite an eye opener since the saddle and tool changer wieght somewhere over 500 lbs