Hi Deron,

With PgS 5.1.1 I notice screen corruption (black) when changing from windowed mode to fullscreen via the maximize gadget top right of the PgS window. This corruption is not happening with 5.0.5.8.

To reproduce, make sure PgS starts windowed. Open a new document, then maximize PgS and this is what I see:

https://imgur.com/a/DeLvPnI

Zooming the page clears it up, and further windowing/maximizing does not show the problem again, but I hope it's not an issue that may cause a problem elsewhere.