>Yes!
>First Monitor HD Resolution 100% Zoom, Secondary 4k 150% Zoom
>
>>Are there DPI differences? For example, is 1st monitor a high DPI one such as a 4K laptop monitor, or a Surface Pro primary screen, and the other is not high-dpi e.g. a conventional 1080p monitor?
>>
>>>We can reproduce the Problem on several machines, and so the Hardware is different.
>>>One secondary monitor is connected conventional DVI on the PC Grapiccard, one is connectes by USB "docking Station".
>>>On both the Problem exists.
>>>
>>>Can anyone the Problem reproduce?
>>>
>>>"Funny": If i change in the Windows settings the first and second monitor, it's the same behavior. On the first Monitor it works, on the second the Problem occurs.
>>>
>>>
>>>>>Hi @all!
>>>>>
>>>>>We have an reproduce-able c5 error / sometimes "Programm not respondig" Problem, if our Application is shown on the secondary Monitor of an multi Monitor System and if I run a Report (regardless of Reportbehavior 80 oder 90) regardless on Print Preview oder print directly.
>>>>>
>>>>>If I put our Application on the first Monitor everything's fine. So I Exclude Printer driver problems etc.
>>>>>
>>>>>Any Suggestions?
>>>>
>>>>How is the second monitor connected to the computer? Is it with a conventional HDMI, DVI or VGA cable, or is it connected by something unusual such as a USB monitor adapter?

C5 error is difficult to reproduce.
The only thing we can say is that in some
configurations often occurs in others almost never.
Rule ? None !
Certainly VFP does not support scaling dpi other than 100%,
I was also tempted by a 4K, but not being able to put 125 or 150 I gave up.