Experiment does not work on Windows 10 PC, but does on other PCs

[wakecarter]

Probably a red herring but there used to be an issue with a particular version of Windows 10 and dual monitor PCs

Dual Monitor - extended screen mode problem (under Windows 10, 1903)

Hi Developers, I think I might have across with a bug for which I don’t know if it is down to windows 10 or psychopy3. I can run a Psychopy3 file (coder or builder) without any problem under single monitor or Dual Monitor - duplicated screen mode. I got a error message with the same PsychoPy3 program file about getGammaRamp ending “AttrtibuteError : ‘NoneType’ object has no attribute ‘close’” under Dual Monitor - extended screen mode. I observed this problem with several settings: Desktop…