hey,
I figured out a problem, when I use the Matrox zoom option on the output window. First everything seems normal, but after a while (20 min) the output on the 2nd monitor stops or slows down, while the origin keeps on with playing. The output continues when I move the mouse or trigger a midi controller. And after a few moments the output stops again.
This happend with the Matrox G400 and G550, and with Win2000 and Win XP. Win 98 I didn't test.
....