Hi Quinn,
Fullscreen mode doesn't fix the issue, all it does is "unhide" the hidden window parts of the screen. The following is what I have tried already:
- Uninstalling and reinstalling mouse drivers
- My friend helped me check the "EnableLUA" value in the registry editor and he said it was fine.
Nothing outside of that has been messed with or changed because my friend had to leave due to prior commitments.