UPDATE:
Tried connecting it up to the Serial Port.
No change.
I've tried
Xmouse as well.
No luck with it either
I can get the Trackball to work with Microsoft PS/2 Mouse Driver,
or the Microsoft Serial Mouse Driver.
But the Pointer Speed is not fast enough.
I have to jog the ball several times just to get from the top to the bottom of the screen, or from the left side to the right side.
{Very frustrating}
Since when I put it back on a XP SP3 machine.
I can easily move the cursor the full area of the screen with very little hand movement.
Is there any other third party software around like
Xmouse.
But will allow you to adjust or fine tune the Pointer Speed or Acceleration?