Hello Oscar,
 BB>> One problem is, a single timer tick is too long. What else can I
 BB>> use as a timer so that the speed is the same on all machines?
 ORP> The vertical u horizontal retrace of VGA registers. So you can use
 ORP> it to sync. the cls with the same time in all computers.
 ORP> If you want, I can tell you how you can do it.
      Thanx, Oscar, I have the vertical. The horz. would be interesting.
      It will provide even more resolution.
Kind regards, Barry
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