Tweakie,
Ver. 056 has the same issue on my computer (Win XP - Dell GX-270) as Ver. 058 - it faults with an Art code (?) error message and forces Mach3 to shut down, then wants to send a report to MS.
Earlier versions have never done this.
I will have to investigate further.
Thanks Much,
John Champlain
www.picengrave.com