Spark,
All I actually did was went to Control panel then System under the Advanced tab go to Performance settings ten Visual E effects select custom de-check everything then select the Advanced tab make sure Programs are set in the Processor scheduling and Memory usage I also doubled my virtual memory then hit OK and shut down the system. Upon reboot I went back to the Visual Effects and made the let windows choose what’s best for my computer hit OK and then reboot.
I restarted Mach3 referenced and entered a MDI move it worked ok then I just increased speed until vibration’s occurred its now 31ipm X, 25ipm Y and 10ipm on Z they can all run at 31ipm however its not practical in the application I am using my machine for at the moment.
My Pc is an old 1.2 Pentium with only 256meg ram hence the reason I thought about the pc as a possible problem
I hope this helps if not let me know
Regards,
Mark