okay f works great, it's only when i manually adjust the size of the window or when i maximize using the maximize button. using the f for full screen this is not really an an issue for me anymore thanks!
What OS are you using W7 or W10?
Maybe you can try in compatibility mode set "W7" or deactivate the DPI to see if that works.
Btw, i will try to fix it so change size works too. Thanks for the report!
windows 10, i will try that. thanks