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Hello Janice, its either your PC is to slow or the connection on the web is also slow or the camera driver is not yet setup properly. there a CD DRIVER you need to install for that webcam, try also the PC screen resolution.
The touchpad is very small on this netbook, so the ratio between the finger movement and cursor movement has to be high in order to be able to move the cursor from one side of the screen to the opposite.
The cursor cannot be too slow, because you would have to glide the finger several times on the touchpad to move it across the whole screen.
However, the speed of the cursor can be adjusted in the mouse properties in Control Panel (Start->Settings->Control Panel->Mouse) in the Pointer Options tab. Experiment with different settings to find one that suits you.
With such small touchpad I would suggest forming a habit of rocking the finger on the touchpad to achieve better precision and control, instead of sliding it. Put a finger on the touchpad center and tilt it left/right, up/down - You'll see that the cursor can be controlled quite well this way. And if you need a larger movement, then it's enough to move the finger the normal way.
Good luck and please come back with a rating/testimonial if helped.
Are you using it on a mousepad? If not, that is probably why you are getting jumpy and erratic movement. Put a mousepad underneath the mouse and you should see the cursor movement improve.
You can also adjust the mouse properties such as speed and control by going into the Control Panel and opening the Mouse applet.
Do you have the correct Dynex driver installed? If not, go to the Dynex website and download the driver for your mouse. Having the wrong driver (or a generic driver) can make a difference in performance sometimes.
Does the slow movement of cursor and keyboard seen only on excel? Given that your excel is not corrupted, it just could be the file size of the worksheet you are working is too big. But if the slowness is present even on small excel file, you may consider re-installing your excel.
But if the slowness is present even on other application, then the problem could be on your pc itself.