Im trying to run the drivertest on a freshly installed 3.041 on win xp. It also a fresh installation of XP, with only mach 3 installed. It keeps saying "Pulsing to fast". This is what it looks like. I also tried the special driver with the same result



How do i solve this problem or is it a problem at all?

It certainly is a problem, no way Mach will control your machine with a drive test like that. You should be seeing a fairly straight line going along the centre of the graph with maybe the occasional small spike.
 Does your computer have on board graphics? Or is it a Laptop?
 You could try doing the optimisation steps, you should find details on the downloads page.
Hood

Both. But that hasnt stopped me before:-) This one is faster than the laptop i use for my other cnc machine. It cant be the CPU's fault, its hardly stressed if i look into the performance chart.

Hurray. Though i had already disabled all unnecessary services i remembered something about "Stanrdard pc" setting as mentionen as mentioned in the optimization file. This helped.

To people running into this problem: Remember to set/install xp with the "standard pc" setting (see xp optimization guide in the download area)