PMDG 737 and popping out displays issue

So on my older gaming PC that I use for MSFS 2020, I have no issues manually popping out the display panels or using the MSFS pop out panel manager. I decided to install MSFS and the PMDG 737 on my more current gaming PC to test it out so its a fresh install and now I can’t get any of the displays to pop out manually. keybind I understood it to be Hold Right ALT and Left click on the mouse when I position the curser over the display. I do that and nothing happens. I’ve also done the setup within MSFS pop out manager and it is unsuccessful at popping out the panels.

I don’t know what the issue is seeing as I don’t have this issue on my other gaming PC.

Also, when I pop out any of the displays they fill half of my windscreen. I have tried to resize them but the next time I pop them out they are large again. Is there a way to permanently resize them?
Thanks.