Try the wired USB mouse in another USB port on the computer. Ensure the surface that you are using has enough of a pattern in it that the mouse can tell when it has been moved (a mouse pad is best, since the mouse judges movement by reflections, a uniform surface is harder for the mouse to tell when it has been moved). For more information, see the How to Clean Your Mouse section. Ensure the optical opening on the bottom of the mouse and around the scroll wheel is clean. Reseat the wired USB mouse cable into the USB port. NOTE: The following steps apply to all brands of wired USB mouses. Insert the wireless USB receiver, as shown in Figure 3.įigure 3: Wireless USB Receiver Insertion. Look under the mouse buttons where the batteries are or in the battery compartment on a keyboard, but they are not shipped in those locations. When you cannot locate your wireless receiver after you have unpacked the devices, some mouses and keyboards have a place to store the wireless receiver. See Figure 2 for the typical location, size, and shape of the receiver.įigure 2: Wireless Receiver Location in Packaging The receiver has an informational tag that is attached to help you locate the receiver. The wireless USB receiver is under the keyboard when buying a keyboard or keyboard, mouse combination, and under the mouse when bought separately. When buying a keyboard or mouse separately from a computer: 
See Figure 1 to see the size and shape of the receiver. The wireless USB receiver is small and can be easily overlooked. Look in every compartment of the box that the devices came in.But if you like trackballs but found the MX Ergo a little out of your price range, the M575 is a good alternative for less.When buying a keyboard or mouse with a computer: The older M570 is down to $30 on Amazon, so maybe we'll see the M575 come down in a bit in due time. Logitech's Options software allows you to customize the buttons to your preferences. Thankfully, you can also connect via Bluetooth and not use the USB dongle, which I ended up doing with an Apple MacBook Pro. It says the Ergo M575's "ergonomic design allows for a wide range of hand sizes to rest on the sculpted shape" and the "angled scroll wheel keeps your fingers in a more natural and comfortable position."Īvailable in graphite and off-white colors for right-handed people, the trackball runs on a single AA battery and includes Logitech's USB Unifying Receiver (which requires USB-A) for Windows and Mac PCs, which can be stored in the battery compartment. Indeed, Logitech seems to be targeting people with more diverse hand sizes with its latest mice.
Its design has been upgraded in small but significant ways from the M570 wireless trackball.
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