Hi Rosemary,

What are his settings in System Preferences > Accessibility > Mouse and 
Trackpad?
You can set the speed of the double click to be much slower.

Kind Regards,
Ronni

 Ronni Brown’s iPad Pro 12.9-inch 256GB 


>> On 13 Jun 2020, at 12:07 pm, Rosemary Spark <arkaysp...@gmail.com> wrote:
> 
> Hi Ronni,
> I tried your suggestion but the problem remains. He can't open any file 
> anywhere (in our outside a program) with a mouse or The only way to open is 
> to use  keyboard shortcuts or File>>Open or in the case of Calendar 
> Edit>>Event.
> It is in the weird category. Not impossible of course, just very annoying for 
> him.
> Cheers
> Rosemary Spark
> PO Box 781
> South Fremantle WA 6162 Australia
> Phone: + 61 ‭8 6397 6822‬
> Mobile: 0414268043
> 
> 
> 
> 
>> On Fri, 1 May 2020 at 13:56, Ronni Brown <ro...@mac.com> wrote:
>> Open Disk Utility (Applications / Utilities) on your Mac. 
>> Select your disk from the left menu and then click First Aid and then click 
>> Run. 
>> This will fix volume errors.
>> 
>> Kind Regards,
>> Ronni
>> 
>>  Ronni Brown’s iPad Pro 12.9-inch 256GB 
>> 
>> 
>>>> On 1 May 2020, at 11:56 am, Rosemary Spark <arkaysp...@gmail.com> wrote:
>>> 
>>> My husband is still running Mojave 10.4.6 on his Macbook 13inn Early 2013 
>>> model.
>>> A really weird problem has arisen. He can't open any file or folder in any 
>>> programme (Mac or otherwise) with his mouse or trackpad without going to 
>>> File>>Open or in Calendar>> Edit Event).
>>> He's re-started his machine; installed a new mouse,  but he (and I ) are 
>>> out of ideas at this point because it's such a strange problem.
>>> 
>>> Rosemary Spark
>>> PO Box 781
>>> South Fremantle WA 6162 Australia
>>> Phone: + 61 ‭8 6397 6822‬
>>> Mobile: 0414268043
>>> 
>>> 
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