Got a new comp. Copied all my UT files over to it.
Unreal Editor starts up fine on the new comp, HOWEVER does not load maps properly. When I open a map, I an left with a completely empty grid in all viewports. If I create a brush (ie. subtract a cube) before loading a map, and then load a map, the subtracted cube stays in the viewports. As if loading maps doesnt do anything.
Both the old comp and new comp are running windows 10, same latest OS updates. It was not necessary to run in compatibility mode on the old computer, non of these settings fix the problem for the new comp.
I've seen this problem before on other windows OS's, but I have no idea what I did to resolve it, or if I even did anything.
-The operating systems are identical.
-The files are identical.
-All settings were carried over.
-No problem running UnrealTournament.exe, just the editor is borked.
Any ideas?

Thanx.
EDIT: New computer editor can't load ANY packages!