setting pointer location

[DVGlasgow at aol.com]

I want users to make a rating of a series of images.  When the scale appears, 
I want the cursor to be at the mid-point.  This is to minimise bias and 
artefact arising from the initial pointer position being random (responses 
are also timed, so I want all users to have the same start point.

So.  How do I make the cursor appear at a certain place?.  (I will kick 
myself if this is obvious - I have scoured the documentation!)


Best wishes,

David Glasgow
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