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I have a VAIO windows 7 64 bit operating system. My scroll does not work for a while.I used to stroke the far-right edge of the touchpad for vertical scrolling and the bottom edge for horizontal but is doesn't work now.

I have downloaded and installed the latest driver for that but it didn't fix. I don't know why but I cannot open Control Panel>Mouse. As soon as run Mouse an error occurs and I have to close that.

This is the problem when I open Mouse in Control Panel :

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Uninstall the driver, reboot and install it again? –  billc.cn Jul 26 '12 at 7:35
    
I already have done that but did not work –  Shangol Jul 26 '12 at 7:36
    
After you've uninstalled the driver, were you able to open the Mouse properties page? –  billc.cn Jul 26 '12 at 7:50
    
No. I couldn't open Mouse properties even when I have uninstalled the driver. –  Shangol Jul 26 '12 at 8:07

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