Mouse Cursor Jumping while typing causing major typing errors

A mouse is a vital component of your computer and allows you to control certain functions on the screen. When the mouse is not functioning correctly, it can be frustrating. There are a few different reasons why your mouse pointer may jump on the screen. You need to work through the possible causes and troubleshoot the problems to fix your mouse and get it working properly again.

1. Examine the batteries if you have a wireless mouse and the cursor begins to jump. A low battery may be the cause. Change the batteries and check the mouse again. If it is still experiencing the same problems, proceed to the next steps to resolve the issue.

2. Switch the wireless transmitter to a different USB port on another computer if possible. There could be problems with the port, causing the cursor to jump. This will resolve the problem if the issue is with the USB port. If the mouse is still jumping, move on to the next steps.

3. Click on the "Start" menu in the bottom left corner of the screen. Right-click on the "My Computer" menu and click on "Properties." Click on the "Hardware" menu and click on "Device Manager." Locate the mouse entry in the list. Right-click on it and select "Update Driver" from the menu. Allow a few moments for the operating system to locate and install an updated driver for your mouse.

4. Remove dust or debris from the mouse pad and mouse with a soft cloth. Dust or debris could prevent the mouse from operating smoothly and cause the cursor to jump. Add a small amount of isopropyl alcohol to the cloth before you begin. Wait for the alcohol to dry on the pad and mouse prior to using.
5. Go to the "Start" menu and click on "Control Panel." Double-click on the "Mouse" icon and click on "Mouse Pointer." Decrease the speed of the mouse pointer. This could be causing the cursor to jump.
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It is most likely the touch pad...a way you can tell is if you have a USB mouse, turn off the touch pad and use the USB mouse...go to type and see if it still jumps around.

Your wireless mouse the battery might be low, change the battery and go to control panel and click the mouse icon, and adjust the right mouse speed setting.

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This is probably caused by you catching the touchpad while ypu are typing. It thinks you have clicked the mouse so the cursor moves to the mouse position. You could try adjusting the click sensitivity of the touchpad in Control panel>mouse

Does the cursor jump around when your hands are nowhere near the touchpad? The touchpads are heat and pressure sensitive. I personally have very warm (and sometimes sweaty) hands. I have this problem often when working on laptops. If I hover my hands over the pad, it causes the mouse to move. I've had to take a business card, put tape on one side of it, and use it as a flip-cover for the touchpad on most of my laptops. If the cursor moves around when you're nowhere near the laptop, then you may want to try disabling the pointing stick (if it has one). I've had several clients with laptops where the pointing stick mouse control go crazy and move and click on things.

I think some where in the cable there is a broken wire, it is inside the cable, cause there is a certain position that it work properly. You can also test it by tyring other mouse if the problem still the same.

If your cursor moves erratically on the screen (for example, if it jumps around the screen, moves at varying speeds, or selects items on its own), perform the following steps:

1. Clean the surface of the touchpad with a dry, soft cloth to remove grease, sweat, moisture, or other liquids.
   
2. Adjust the sensitivity of the touch pad:.
   
   1. Click the Start button and click Control Panel.
      
   2. Click Printers and Other Hardware.
      
   3. Click Mouse.
      
   4. When the Mouse Properties window appears, click the Pointer Options tab. (Figure 1)
      
      Figure 1: Pointer Speed
      
   5. Under Select a pointer speed:, click to move the slider bar closer to Slow.
      
   6. Click OK.
      
   7. Check to see if the touch pad still behaves erratically.
      
3. If the touchpad still caused the cursor to behave erratically, attach an external mouse to your computer and restart your computer. Use the external mouse to see if your cursor still moves erratically.

the problem is where the mouse cursor is. When you begin to type have the mouse cursor as far down the page as possible the glide pad can pick up the slightest variant of pressure and move your text to the position where the mouse cursor is.

check the battery if any,maybe its leak,try another mouse,maybe the one you have is already defective.