We have another seat of Mastercam with identical post, but it does not required to save before it can post process. I wonder if its something to do with the Windows upgrade to XP professional or not? It runs OK with Windows 2000 before. Is the time setting in the .pst file? As this is customize 5 axes post there is not much I can change. Cheers

I am having a problem with the post processor. I am just creating a rectangle and profile roung it. When I post the cutter path I keep getting error message: Your Operation Number : 1 ( * WARNING * Cannot Continue Post-Process * ) ( * Please, Save Your File Before Post-Process * ) Postblock label pwrtt Program execution halted due to error(s) running .pst But if I save the file and then re-open it again, then it posted straight away with no problem. Anyone out there can give me some advice... By the way I am running Mastercam version 9.1 with SP2 Kizza