let me reboot my pc and i show a video whats happen the problem.

it was the drivers?

there is a way to solve it because i don't remember the thing that i uninstall. if was the drivers?

here problem 407210

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i had to try many times and dosen't work.

how i do :(

I tried it but it didn't work for me.
every time I change the view of the thumbnails. the transparency turns black :/