Just so that it can help anyone else facing the problem
it was the touchpad driver...the ClickLock option is to be unchecked.

sowmya.vr******.com wrote:
> Hi,
> This is not a very major problem, but is still driving me nuts.
>
> I use a Dell Inspiron 640m and I recently upgraded to IE7 which bought
> a host of problems. One of which was that the Synaptics driver got
> corrupted & I had to re-install the driver from teh Dell site.
>
> And thereon I noticed that my text selection in Word & data range
> selection in Excel had changed. Earler If i wanted to copy 1 sentence
> out the 2 present, I would just select the necessary section and use
> Ctrl+C- which would copy the highlighted text
> Now, unless I click again the selection does not stop, and the copy
> action doesnt work.
> I cant understand what changes has affected it - is it the changed
> settings in the touchpad driver or is it changes in settings in Word
> etc?
>
> I hope i have been clear - & I hope someone can help me figure out this
> maddening issue.
>
> Thanks