I have a Vaio TZ21MN which I have had for a few years. Recently the response of the touchpad has been deteriorating at a frightening rate. I sometimes get a one or two second pause in response - at other times I only have to use the lightest touch to move the pointer - alternatively, I have to press quite hard to move it......anyone got any ideas as to how I can remedy this problem?
Thanks in advance.
Curlybop. 
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