Sudden problem with Texshop

David Edward Bruschi david.edward.bruschi at
Fri May 27 08:11:06 CEST 2022

Dear Mr. de Souza,

unfortunately since we are neither friends nor colleagues, the 
traditional and correct approach of referring to people using their last 
name and title as a form of respect and courtesy remains in place, and 
rightly so.
The modern fake and artificial pretence of democratization and 
equalization of everybody's position, status and relationship in life is 
just another consumistic whim of a capricious West where there are not 
enough real problems. We can see the consequences in the American 
campuses, for example.
Thereby, I confide in your understanding and I will maintain a 
professional and respectful distance until a deeper or working 
relationship is established.

Regarding the problem mentioned in my query, I have solved it by 
formatting my computer.
Texshop now works. I hope this does not occur again.


David Edward Bruschi

On 05.05.22 01:01, Paulo Ney de Souza wrote:
> Dear Mr. Bruschi,
> I would appreciate being referred to as just Paulo Ney, my first name.
> Adding to what Richard said, he should be the point man here:
> I believe it does not have much to do with TeXShop, except for
> the fact that TeXShop and all the programs it calls may imply high
> memory use. Probably the same would happen if you called Maple
> of Mathematica and tried something hard to compute in it.
> If your machine has or is developing some kind of memory problem,
> the symptoms will be very close to what you describe.
> I would recommend testing your RAM with Apple's user diagnostics
> tools is easy. Simply restart your Mac, and then hold down D as soon
> as it restarts. If you did it correctly, your computer will either 
> boot into
> Apple Diagnostics or Apple Hardware Test, depending on the age of
> your machine.
> Apple silicon Macs require a different way of entering Apple Diagnostics.
> You must first shut the Mac down and turn it back on, holding down the
> Power button until you get to the startup options screen. Then, press 
> Cmd + D.
> Follow the prompts and let the test complete.
> Best,
> Paulo Ney
> On Wed, May 4, 2022 at 6:51 AM David Edward Bruschi 
> <david.edward.bruschi at> wrote:
>     Dear Mr. de Souza,
>     thank you for your email.
>     I would appreciate being referred to as Mr. Bruschi.
>     I have the latest version of TeXshop, operating on an iMac that is
>     2 years old.
>     Notice that it worked flawlessly until Thursday last week.
>     What happens now is that every time that I open a .tex file with
>     TeXshop, or just load TexShop per se, the computer becomes non
>     responsive, the Magic Trackped deacivates, the Bluetooth seems
>     particularly to fail, and the computer either works after some
>     time, freezes completely or restatrs on its own. I have never seen
>     anything like this in 14 years.
>     I tried to reinstall MacTex and TeXshop but to no avail.
>     I hope that you will help me with this.
>     Best,
>     David
>     On 02.05.22 16:08, Paulo Ney de Souza wrote:
>>     Dear David,
>>     Can you give us more detail? Is this a new installation of
>>     TeXshop? How does it fail to load?
>>     Paulo Ney
>>     On Mon, May 2, 2022, 6:48 AM David Edward Bruschi
>>     <david.edward.bruschi at> wrote:
>>         To whom it may concern,
>>         my name is David Edward Bruschi and I am a scientist at the
>>         Institute
>>         for Quantum Computing Analytics (PGI-12), Forschungszentrum
>>         Jülich, Germany.
>>         I have ben using Mactex and Teshop for 14 years on multipled
>>         Apple
>>         devices, and I have had since today a very strange problem
>>         with my iMac.
>>         This is a relatively new computer (2 years old) and had no
>>         problems
>>         whatsoever until today.
>>         Since today, Texshop does not load and the Magic Tracpad
>>         simultaneosuly
>>         connects and disconnects.
>>         I have never had such a problem on any computer, and the smae
>>         configuration and setup worked flawlessly untile a last Friday.
>>         Any hints at what I can do would be helpful.
>>         Best,
>>         Dr. David Edward  Bruschi
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