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In your Link is a Hyperlink to the website of the developer. Have you contacted them for support already?
 
In your Link is a Hyperlink to the website of the developer. Have you contacted them for support already?
Yes I have
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Are you running 10.13.4? Because that update breaks AirDisplay and USB displays. See article here.
Thanks, That must be the problem
[doublepost=1525617444][/doublepost]Is there any other solution to use iPad 1 as a extra screen?
 
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