Kensington Expert Mouse Trackball Not Working

I've used the Kensington Expert Mouse for years now and won't do without it. I recently bought a new iMac with the new Magic Mouse. I did like the scrolling ability of the Magic Mouse but after a week I broke down and bought another Kensington Expert Mouse. It has much more accuracy and stability than the Magic Mouse. Plus, the trackball is easier on my hands and wrist than a traditional mouse. I'm on the computer all day and do everything i can to make my day run smoother. Moving the cursor on the screen is much more intuitive to me with a trackball than with a mouse. The Kensington Expert Mouse does have both horizontal and vertical scrolling. While not as intuitive as the Magic Mouse, it still works.

I have been a Kensington Expert Mouse Trackball customer for decades, but up to now have only used the wired version. I wanted the wireless version for when I'm away from home. I use it with a 16 MacBook Pro and prefer something besides the built-in trackpad for moving the cursor around and scrolling chores. When I'm at home, I have the MBP plugged into a dock that has a Kensington Wired Expert Mouse connected. I'm very happy with the wireless version. Works as well for me as the wired ones at home. I use the Bluetooth connection option, not the dongle. No issues to report. Yes, the trackball is somewhat bulky, but there's plenty of room for it in my backpack. I'd recommend it!

I've been using Kensington trackballs for about 16 years. I forget what they called the with one with the wheels but that was my first. I moved to expert mouse when optical technology came out. I still use an Expert Mouse wireless, an Expert Mouse, and now this SlimBlade. Believe me folks NOBODY makes a trackball as smooth as Kensington. I got this SlimBlade to use with my HP laptop because I just couldn't stand the products offered by Microsoft and Logitech. The SlimBlade has a unique way of scrolling by twisting the ball and after two weeks I see the death of the scroll wheel on the horizon - it's that intuitive. If you want a trackball save the money you'll waste on a MS or Logitech ball and pay the few dollars more for the Kensington. You won't go back.

This is a replacement for an old (20-25 year old) Kensington Expert Mouse Trackball - it was all dusty and gummed up. The new one was stiff at first but, after a 2 or 3 hours of use it became broken-in and now the track ball floats and slides the cursor across the screen with precision.

This is my second Kensington Expert Mouse Trackball. I would have likely had more but they are made so well and last so long that Im only on my second. The first I bought in 1989 when they first came out and it only just died (Sept 2024). You should know that as a left handed artist using a wacom and stylus plus my trackball for my right hand, my digital workflow is so fluid and seamless that I can't imagine working any other way. The ergonomics and customization make this one of the better investments for anyone spending long days in front of a computer. You will not be disappointed.

In a touch screen digital world, switching from Logitech MX Master mouse to Kensington Expert felt like going Back to the Future. I gave myself 7 days to work only on Kensington Expert Mouse. The tactile feedback of a large ball turned out to be extremely satisfying experience. The feature I've used the most on MX Mater, and I thought I would not have on Expert Mouse was a thumb-wheel function, which was setup to switch between the 3 virtual desktop screens I have on my Mac. Quickly I've discovered that the top buttons on the Expert Mouse are perfect replacement for my MX master thumb-wheel. I've also programmed top buttons to run Expose when pressed simultaneously - the feature I used on MX Mater with a thumb button. Now the biggest issue was a middle mouse click.. but it turned out to be as simple as programming two bottom buttons acting as the one, when pressed both at the same time. The big bonus is that if one needs to use buttons to perform different actions, one can do so. Kensington software allows per application button customization. I would consider all mentioned above as pros for this product.. now few if any cons - the scroll ring needs a redesign. At first I thought that I may have a faulty item, but watching couple of videos on the internet, I've found out that that gritty feeling is due to the ring design implementation. It's true.. the grittiness fades with use, but it's still far cry from a silk-smooth operation of MX Master scroll wheels. Minor cons is a somewhat high profile of the Expert Mouse. I have a large hand, so this is no issue for me at all. I'm looking forward to get the Kensington SlimBlade, which in my mind would eliminate high profile and gritty scroll ring. Overall.. if your desk keyboard/mouse space is limited, or you want to discover what you were missing all these years, using regular mouse - trackballs are way to go. Especially if you have a full size keyboard. Excellent product - highly recommended.

I have been using a trackball for more at least fifteen years (my preference). The 4-button USB Expert Pro Mouse - Trackball by Kensington is there best trackball yet.

The only better pointing device - in my opinion - is the Kensington Expert Wireless Trackball. This one is a bit less easy to control since it uses the thumb rather than the fingers, but it is great for portability. I especially like that the ball won't fall out and that it can switch between two blue-tooth and one other wireless device.

I adapted pretty quickly to the Kensington Expert Trackball. Wanted to try one in an attempt to save my myself from a RSI. Still have a ways to go for my ergonomics but its working great so far.

I am so grateful to have found the Kensington Trackball. I bought it to replace two Logitech trackballs that I had previously owned (the M570 and the Ergo M575). I had to go online to find the Kensington because all of our local stores only carry Logitech. The Kensington is brilliant. Once you learn how to customize the trackball using Kensington's software, it's easy to find the most comfortable angle for your wrist. The Kensington is solid and heavy, which I like. It stays in place on your desktop. The USB dongle connects the mouse without disruption. And I like the scroll wheel. The Kensington itself is more intuitive to use than you would think, and (hopefully) it will last a long time. It comes with a manufacturer 3-year warranty, which is the longest manufacturer warranty that I have seen on trackball mice of any brand. This mouse is definitely worth the price. I take online classes and write computer programs, so this trackball mouse helps a lot with relieving wrist and forearm pain. It's worth the investment. It takes a few days to get used to it, but once you do, it's doubtful that you will go back to other mice, trackpads, and such.