Many thanks Carlo.  I could not find any reference to the gesture but by 
further investigation found that the keyboard strokes option-cmd-8 was what I 
wanted.
I knew there had to be a simple solution but just could not find it.

Thanks

Barry


On 02/01/2012, at 9:35 PM, Barry Sexstone wrote:

> I have just started using a trackpad and have somehow inadvertently managed 
> to zoom/enlarge my whole screen.
> This has resulted in information being lost at either the top or bottom of 
> the screen.  i.e. I can either see the menu bar or the dock but not both at 
> the same time.
> The apparent magnification of the screen  is not as a result of the two 
> finger pinch or the the expand arrows at the top right hand corner in an 
> application as these work in addition to the unwanted magnification.
> I am sure there is a simple explanation as to which unwanted gesture I 
> mistakenly used and how I can reverse it but I have been unable to find any 
> reference to this situation.
> Can anyone advise me?
> 
> Thanks
> 
> Barry
> 
> 
> 
> iMac 10,1
> Intel Core 2 Duo 3.06 GHz 
> 8GB RAM
> 1.0 TB HD
> OS X 10.7.2
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> -- The WA Macintosh User Group Mailing List --
> Archives - <http://www.wamug.org.au/mailinglist/archives.shtml>
> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml>
> Settings & Unsubscribe - 
> <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>

-- The WA Macintosh User Group Mailing List --
Archives - <http://www.wamug.org.au/mailinglist/archives.shtml>
Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml>
Settings & Unsubscribe - <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>