What's the point of having a ball on the mouse if it only scrolls up and down? A pointing device you can't open and clean? Pointless! Besides, I've hated the damn little rodents since I first laid eyes on one 20 years ago and switched to track balls as soon as they became available.
Let me know how you like the scroll ball after a couple of months 😉
Checked the Kensington site and found they have a new model Orbit ball in grey and black for only $29 so I ordered one. Found a coupon code via a search which yielded free shipping... Not a perfect match to the new KB, but close than the clear / green G3 motif... 🙂
It's an OK trackball I think, but the lack of features turned me away. There's not even a scroll function on it.
I was trying out the optical expert mouse as well, and it had great features but it felt very cheap overall, especially the scroll wheel. Certainly not what I expected for that kind of money.
I read that comment in many of the on-line reviews and the position of the ring around the ball for and the need to rotate it left / right to scroll up /down seemed much more awkward and counter-intuitive that just clicking both buttons of the orbit to scroll. That's one of the reasons I opted for another Orbit. More often than not I just use the up / down arrows on the KB to scroll web pages.
By the way, I noticed the old Studio Display in that picture. I didn't recognize it at first, but then I remembered that they made those for a short period. When was it? 7 years ago?
I've never seen one in real life though. I bet they are fairly rare these days?

[*]I have found that on the 24" screen at 1920 x 1280 resolution, it simply doesn't move far enough. Even with the sensitivity turned all the way up. I'm constantly picking it up to re-position it.
[/LIST]:
Checked the Kensington site and found they have a new model Orbit ball in grey and black for only $29 so I ordered one. Found a coupon code via a search which yielded free shipping... Not a perfect match to the new KB, but close than the clear / green G3 motif... 🙂
Download the app STEERMOUSE It is very good and will fix the issue you have with tracking at that res