awakening screen from screensaver

[R Kimber]

Movement of my mouse (logitech LX7) does not interrupt the
screensaver.  I have to press a key to get the screen back.  Is there a
setting somewhere for this?  I can't see it under 'screensaver' or
'mouse' in the preferences.

Or is it a bug?  If so, which package should it relate to?

I have 8.10

- Richard
-- 
Richard Kimber
http://www.psr.keele.ac.uk/