Hi all, the other day I hit an OS error on XP. (see below for full messag), and ever since then my machine studders and jumps like a drunken sailor.  It seems to work ok when running g-code, but when jogging it stumbles. 

Questions:
Does anyone know the cause of the below error?
Is this 'tracking code' casusing the stutter?
Anyone know how to stop the error in the first place?
and how do you turn off the tracking code?

Thank all,
If this has been brought up already I applogize for my ignorance

A device driver is leaking locked I/O pages causing system degradation.  The system has automatically enabled tracking code in order to try and catch the culprit.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.    <- Of course no help at all

Mike

Are you running all types of applications or is this a striped PC dedictaed only to mach?

Brett

Not really stripped as a purist my insist upon, but just the OS but with all Service packs and hotfixes. (i.e. not hardened and uncessary services disabled etc..)

I think I got it to act normally again.  Under the devices for the LPT port there is an option to use 'IRQ always' which seems to have turned off the tracking code and all is once again right with the machine.

Still dont know how this happened.  But unless it happens again there isnt much I can do to recreate the problem, since I dont know how it started.