I use Windows 10 and a second screen for flight planning. However, the resolution is very high and as a result, when i go into the flight details panel on the right, all fields are not visible, nor is it if i want to file a flight plan and GAR. I can't appear to change the size of the whole panel on the right. (i can still file via Android phone and tablet without issue but its not always ideal). 

Not sure if this is the same issue, but the menu text displayed by my SD on Windows 10 has changed.

You could try deleting the Program Files\SkyDemon\skydemon.exe.manifest file to see if that helps. SkyDemon isn't made for super high resolution screens so some elements might look weird on them, even though the map should look great.

I daresay it's the same issue.

Dan, that isn't the same problem as this thread. We haven't changed anything in SkyDemon in the last few days. Those windows all use the Microsoft Edge Webview2 runtime to render their content, perhaps that component has somehow become corrupted on your system.

Edge (the browser) isn't the same as Edge Webview2 (the runtime). The former can be removed, I think, whereas the latter is used by apps like SkyDemon to display embedded web content.