i have a 98 bmc4020 with the ultimax control. i am having a issue when running a g&m program and am not sure if its code related or memory related. when doing any rapid moves it is real choppy and really slow as if it only reads one line at a time really slowly with a start,stop,start,stop every line, if rapid feed is set at 300ipm it will bounce around from 20-60ipm also when doing a helix plunge it does the same choppy motions. i believe it is memory related because when i go to edit the program on the controller it is very sluggish and slow to respond to commands such as scrolling down through the program, if you hold the down key and let off after a few seconds it just keeps scrolling down the program for a few seconds. any ideas if i am correct on the memory being the issue or is it a possible code problem? i also have a 2006 vm1 with the same software and i do not have this problem on that machine,