Flashback in V4.1.0

[Glack]

I'm using V4.1.0 in Win10.
I have already added "allowOldEduRelease=7501" to the usrset.txt. But when I open a scene which have shapes and click the shape it will flashback. If I don't click it but only run the simulation or change some shapes' setting, it won't flashback.
I guessed that the problem was caused by the monitor, previously I had no problem using the software on another monitor, but this time I replaced the monitor and there was a flashback problem. The two monitors have different resolutions, one 2560*1440 and one 1980*1080.
Looking forward to your response. Thank you.

[coppelia]

Hello,

as far as I can tell, the problem is linked with your set-up. Did you try to update the graphic card drivers? Otherwise, please post a short video that illustrates the problem.

Cheers