Hi,
I did not make any driver test, yet, but until now I had no problems. I am running Quantum on the same computer, nothing else, and it works extremely well. The computer is Dell 1.7Ghz with 512M memory and 20G hard. The machine has 6.8Nm stepper motors on all axis with ballscrews. The drivers are Geko. Yes, if the backslah is not active the machine is not oscillating, but I did not run the files w/o backlash to see if the skipping happens again. When I run first time I have run on sheet of Komacel and I have ruined it. It is very expensive here, at least for me. Afterwards I have run different files on some foam pieces with backlash.
Zoltan