My pointer keeps going to one of the corners of the screen

  Rotenone 12:41 21 Jun 2011

In Windows 7 the pointer keeps shooting very fast to ons of the corners of the screen'.I have looked at 'Snap to' in 'pointer options' (via Hardware and Sound',then right click on 'USB optical wheel mouse' then left click on 'mouse settings')but whether I check or uncheck this box,it makes no difference.I am marking exam. papers online and it happens very frequently when Iuse the 'highlighter tool' which is available to underline any important points. Can anybody advise me as to how to remove this very annoying function.

  Woolwell 14:34 21 Jun 2011

Are you using a mouse mat?

  Crosstrainer2 14:44 21 Jun 2011

I agree with Woolwell, I think it might be the mat. It's common in Win7. Have you tried deleting the device and rebooting?

This sometimes helps....If you can afford one, a laser mouse is your best bet!

  Sapins 15:17 21 Jun 2011

Try a sheet of white paper instead of a mouse mat, it gives more stability to the mouse movements.

  proudfoot 15:53 21 Jun 2011

It occasionally happens with me on Vista. I used to use a mouse mat. When I used a mouse mat it still happened, I now just use my mouse on the hard wood surface of my desk it is not much of a problem to me.

  Rotenone 22:01 21 Jun 2011

Thank you all for your very speedy replies.I was going to buy a new mouse mat but,on your advice,I have removed the mouse mat and already there seems to be a big improvement. Best wishes to you all.

  Woolwell 22:59 21 Jun 2011

It tends to happen with diagrams/pictures on the mat. Try a plain one.

  robin_x 23:44 21 Jun 2011

Upside down table mat (cork) is also very good.

  Rotenone 04:48 29 Jun 2011

Again,thank you all for your help.The problem is solved.Thank goodness for PC Advisor!!

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