OK Folks - Update. Firstly I want to say a YUGE thank you to Mark Kojetin, Trotec in Oz. . Not only has he been plying me with suggestions but he actually took the time to call me and help, All the way from Australia. Thats amazing, thank you very much Mark. After trying another computer at Supports suggestion, the file failed at 100 speed. I reduced it to 50 speed and it ran in simulation so Im getting hopeful. I switched back to the first computer and tried it at 50s. Holy St. Francis, it worked. I ran it in simulation then engraved it twice and it completed without issue. The original problem still exists but at least I have a work around and the window of cause just got a whole lot smaller. Thanks to all of you for chiming in and again.