Trying out another external USB mouse is a fairly simple way to determine if the issue is a hardware problem or not, if you don’t have one handy you can always get a new USB mouse as they are quite cheap. For example, I have a faulty Logitech mouse that routinely registers improper clicking activity despite being in pristine condition, and I have another beat up Logitech mouse that works great. The physical condition of the mouse or trackpad can also make a difference though that alone is not always an indicator of a problem. If you’re periodically experiencing improper click registrations along with random inability to click a mouse or trackpad at all, you’ll also want to do a thorough check of the hardware condition and battery (if applicable). This is particularly relevant if you’re experiencing more than just improper click registry, but also other unusual behavior with a mouse or trackpad, like errant or missing cursor movements. I’ve experienced a mouse go haywire after they have been damaged from water contact, so if you have ever spilled coffee on a mouse, thrown it out the window, or used it as a mace to ward off an alien invasion, it may have an actual physical issue that makes the clicking activity not work properly. Rarely, the mouse accessory may be damaged and in such a situation, replacing the accessory can be necessary. Thus, cleaning the mouse or trackpad surface is a good place to start. A grimy mouse stuffed full of gunk, dust, and whatever else can cause clicks to register incorrectly or not register at all. The first thing if you suspect this is the case is to insure the Mouse is clean. Sometimes erroneous click behavior can be due to an actual hardware problem with the mouse or trackpad, as well. Mac OS X 1.If you have noticed that a Mac is erroneously registering double-clicks instead of single clicks of the mouse or trackpad, read on to learn a few ways to troubleshoot the issue and potentially resolve the problem.OS X Snow Leopard Accessibility: Physical and Motor Skills.To read more about Mouse Keys for OS X, click on the following links: If the options to enable or disable Mouse Keys via the option key was checked, pressing the option key five times will also turn off Mouse Keys. To turn off Mouse Keys, check the Off radio button in the Mouse Keys section of the Universal Access system preferences. If the option to Show Universal Access status in the menu bar is enabled in the Universal Access system preferences, a marquee will appear next to the Universal Access icon in the menu bar stating that Mouse keys is on (Figure 2).įigure 2. How To Know That Mouse Keys is Workingīy default, OS X will play a sound when enabling or disabling Mouse Keys and when a modifier key is pressed. Check the On radio button (circled above) to enable Mouse Keys. This will allow you to enable or disable Mouse Keys using the option key rather than via system preferences.įigure 1. If desired, check the box labeled Press the Option key five times to turn Mouse Keys on or off. (Alternatively, click on the System Preferences icon in the dock.)Ĭheck the radio button labeled On in the Mouse Keys section (Figure 1). Turning On Mouse Keysīy default, Mouse Keys may be turned on in the Universal Access panel of System Preferences:Ĭhose Apple menu > System Preferences, and click Universal Access. This will benefit users who are unable to manipulate or have difficulty manipulating the mouse. Mac OS X Snow Leopard Mouse Keys enables the user to move the pointer by pressing keys on the numeric keypad rather than via the mouse.
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