I've checked that the driver is current and cleaned the keyboard and contacts. Funny thing is when I moved the keyboard to another computer, the numeric keypad worked fine. Hp laserjet p1102w driver for mac el capitan. I hooked up the keyboard from that computer and the numeric pad would not work. I checked the properties and they have the same drivers. Release 1.3 of Targus USB Keypad drivers enables you to use the numlock on the keypad and your laptop keyboard independently. It also fixes the '-' key problem in Excel, and enables you to change.
I have a Logitech wireless laser mouse and after a year or so of use, the left click button would double click every time I tried to single click something. As can be imagined, this gets frustrating very fast. So, being the tinkerer that I am, I decided to open her up and see if it could be repaired. Sure enough, It's a pretty simple fix, if you have some common tools and a teaspoon (edit:a tablespoon) of patience. There are some very small parts involved, so you will want to make sure you ware working in a well lit, clean environment so that any parts that are dropped can be easily found. I have now performed this fix for the third time and decided to take pictures this time to share with others who may find this useful.
Each time the repair lasts about 6 months to a year before needing to be redone. I imagine at some point the piece causing the problem will break, at which time the mouse will need to be replaced (unless you're determined enough to try and source parts). Good luck with your repair, I hope this helps. EDIT: There are quite a few comments about the difficulty of step 8. I would advise that you read through some of the comments for various approaches to completing that part of the repair. Depending on the mouse, there can be one, or several click mechanisms. This particular mouse has 6, with the left and right click being the main mechanism.
The left click is the one causing me problems, and is likely the one you are looking for also. Locate this mechanism so we can continue the repair. Before you proceed, be sure to notice the very tiny white button located on the top cover. This will fall loose when the cover is removed, and you will want to be sure you retain this piece to be reinstalled later. The small rectangular box, contains the part we need access to in order to complete the repair. To open the cover, use a small flat head screwdriver to gently pry the box cover away from the latch.
This will allow the cover to lift slightly until you can do the same to the backside. Be careful not to pry too far or hard as it could damage the cover. The first time I performed this repair, I damaged the cover on mine, but thankfully it still stays in place, so there was no real harm done. Be sure to retain the small white button to reinstall later. This is where the patience comes into play.
This is probably the most tedious and time consuming part of the repair. To reinstall the tension spring, first attach it to the small hook at the front of the mechanism, as shown in the picture. Then use the flat head screwdriver to push the curved tab into place while keeping the rear of the spring under the small arm at the rear of the mechanism. The second picture shows what it should look like after being reinstalled.