Hello.
I have a problem with my powerbook (with morphos 3.9 and 3.10) that from time to time the image becomes corrupted.
I happens usually at the startup. I reset and go ok.

Show an image to be clear.

HeJjC9m.jpg

Yeah, it's a known issue :( Disable screen back-light (brightness to zero) and increase it back up. Usually fixes the issue.

Thanks jacadcaps! Will try later!