Menu Brightness inconcistency

So for a while I’ve had a problem with my menu brightnesses, it’s been happening in all source games as well as gmod

When I’m in the main menu, everything is bright and washed out

But ingame, everything is fine

I’m on the latest drivers, I’ve tried google and nobody seems to have a working answer other than it’s a bug with the GTX 480
Anyone have any solutions or advice for this?