I was just playing skyrim doing touching the sky quest... I confronted the knight paladons brother. All was going well tell serana yelled "watch out hes shaking the roof!" then a few seconds later when it colapsed my screen went greenish. Not eveyrthing the exact green but greenish. So after dying and loading back it still was green even before the roof collapse. When I got out of the window the desktop apps were greenish too. So I went into settings and the settings background was green. I know this isn't all about skyrim but I was just playing skyrim when it happened so can anyone help