hi sorry for my english write it as best I can , the problem that i have .My mill is working worng what happend when it start working with it some times it works good for about a hour some times for 2 hours
and then it starts breaking parts , some times the scream on my monitors freezes and the mill lost its direction, But if i restert the PC it works ok but i need to restert PC every time when im changing the g code . i have  2 cnc and 2 gecko driver  g540 PC 1 it is from dell 3.4ghz memory ram 1g secend PC is from ibm 3.0ghz and 1g of ram I found the forum replies that it may be AntiVirus , but I threw AntiVirus i chicking the steppers moters it is working ok motor doesnt lose its stepp
 can u help me what can be the problem   help me please

Hi komar1970,

Welcome to the forum.

You could try following the optimization steps towards the bottom of the page here http://www.machsupport.com/downloads.php

Tweakie.