Thanks very much for that, Peter, I'll try it and report back.

Cheers, David Noel


On 25 January 2017 at 07:41, Peter Hinchliffe <hinch...@multiline.com.au> wrote:
>
>> On 24 Jan 2017, at 4:21 pm, David Noel <lis...@aoi.com.au> wrote:
>>
>> I have been having a problem where my desktop suddenly expands, adding
>> some centimetres of margin all round, and pushing windows to one
>> margin of the expanded desktop.
>>
>> Mousing down to one margin of the desktop scrolls that margin into
>> view. If accessing the bottom of the desktop image, menus etc at the
>> top of windows may disappear. Similarly, mousing to a side edge will
>> cause the contents of the opposite edge to slide out of view.
>>
>> The problem disappears if I restart, and can be coped with without
>> restart, but I'd like to know what's happening -- I assume something
>> in the System Preferences get reset. Any ideas, folks?
>>
>
> It sounds as though you have some apsect of Zoom turned on. Go to System 
> Preferences > Accessibility > Zoom, and see if any of the choices are 
> enabled. If so, trn them all off and see if the behaviour persists. Without 
> access to the computer, it’s difficult think what else might be going on.
>
> Peter Hinchliffe        Apwin Computer Services
> FileMaker Pro Solutions Developer
> Perth, Western Australia
> Phone (618) 9332 6482    Mob 0403 046 948
> --------------------------------------------------------------------
> Mac because I prefer it -- Windows because I have to.
>
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