I took the trackball off the mounting plate and manually spun the L/R spinner....got zippy response.
Sounds to me like the optic board works. When you spin the ball L/R do all the rollers move as expected?
Yes....both spinners work fine when I roll the ball. When I roll the ball up and down, that movement is "sensed" and the mouse cursor moves in the up and down direction. When I move the ball from left to right, the spinner moves, but the mouse cursor does not.
I did find that wiggling the black optic sensor that the wheel is attached to will allow for some sporadic L/R movement...but I'd have to take the whole trackball apart in order to debug it with a multi-meter (and I'm just not in the mood for doing that now).
Thanks for the linkee...will be checking into that asap...just wanna get my boxen done.
-h