[Art Fenerty]

Hi:

If your running Verrrrrrryyyy slowwwww, then that computer will probably run MAch1 fine. The slowness results from another process slowing the timing subsystem down after MAch1 has sped it up.
Make sure you have no qtask.exe running in your process list, this has been known to do just what you describe.

Let me know if I can help any further,

Thanks,
Art
artofcnc.ca