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Re: laptop lenovo 4152 38q
Your touchpad is very sensitive. Be sure to keep your fingers away from it when typing. I have the same problem with my Toshiba laptop--I decided that unless I was in a travelling situation, I would use a small wireless mouse. I just disabled the touchpad.
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Some Lenovo touchpads are over sensitive and they cause the cusor to slip or jump around. In Control Panel select Mouse or Touchpad. A box will open and you can locate touchpad Properties and adjust the sensitivity. Lenovo also has updated touchpad software/drivers for one or two of the most troublesome models. i was able to reduce the cursor jumping around quite a bit by adjusting the sensitivity, but i still don't think it's a good design.
Acer laptop computers come with built-in touchpads to control cursor movement onscreen. Depending on the sensitivity and settings of the touchpad, it may register undesired motions as mouse controls, causing the cursor to jump erratically. The software drivers that Acer includes with its systems have sensitivity options that help alleviate this problem and ensure that only deliberate touchpad motions and taps cause the cursor to move.
Click on the Start menu and open the Control Panel. Choose an "Icon View" option from the "View by" dropdown menu, then click the "Mouse" icon. Navigate to the "Device Settings" tab and click on the Synaptics device in the list. If you have installed and use custom software other than a Synaptics application for controlling the touchpad, select it instead. Click the "Settings" button. Click the "+" symbol to expand the "Pointing" section in the left frame, and then the "Sensitivity" section. Click on "PalmCheck." If you have replaced the Synaptics drivers, the menu may use a different set of options. Click and drag the bar to the right, closer to the "Maximum" setting. An increased PalmCheck setting will help decrease cursor jumping due to accidental palm activations, a common occurrence when typing. Click on "Touch Sensitivity." Click and drag the bar to the right, closer to the "Heavy Touch" end. This will ensure light brushes by fingers or accidental activations by other objects will not cause the cursor to jump. Click "Apply" to test the settings, and "OK" when satisfied to save the changes and close the window.
On your touch pad exists a place that works like a scroller on the mouse (Usually the right part of pad with white lining). When you rest your wrists in this area, the cursor usually jumps in another place. I'm of course hoping that this is the problem and that your touch pad works fine. Try it and please tell me if this fails..
It is a fault with Lenovo laptops. My cursor jumps all the time, no matter what software I am using. It is NOT the 'sensitivity' of the touchpad, for my cursor jumps even when I am not typing, even if I don't touch the laptop! I can set the cursor to a certain point on a document and then, after about 30 seconds, it will just jump to another point, even if I am in another room.
This happens to me also. Check whether the touchpad is enabled (laptops do have an option of enabling / disabling the touchpad). Secondly, you can try reinstalling the touchpad driver. Uninstall and then re-install the driver. Re-boot the system. Try using the touchpad.
Most likely, your wrist is gently touching the touchpad, and your computer is interpreting it as a 'tap,' and it so happens your cursor was located several lines up. Or if you use a separate mouse, is it on a wood or uneven surface? This will cause it to jump up those few lines and again, your wrist (or if you have big hands like I do, the bottom of your thumbs) will tap it.