Hi,
I think the problem might be with XP and not so much with the chipset. I tried to format/flash first on my XP machine with a SIS735 chipset and couldn't get it to work (problems connecting, format didn't work,...) even when I put it in W2K compatibility mode.
I then tried it on my W2K machine with a nforce2 chipset and it worked perfectly. The complete format took maybe 60 sec. (Sorry, i didn't time it) I then tried writing, erasing,.. to make sure everything worked fine and I didn't encounter any probs. So.. until DMS comes out with a updated software, I'll keep using my W2K machine to flash the chip.
The led went on when I connected the USB cable and stayed on, but it went out when I was flashing the chip... I read on the DMS site that this is the normal behaviour.
L8er