I haven't been using SW very much recently (company mandate on Creo for some projects), but wanted to use SW to compare modeling time on something. When starting a 3D Sketch, SolidWork's opacity drops (so that I can see what's behind SW itself (Creo today, but it's been just the desktop before). Each time I click, the opacity drops further, until I move my mouse, then the opacity goes up to the first level (still see through), and it starts all over again. I have tried switching to software OpenGL, but that didn't make any difference. Any ideas?

Computer specs in profile.

Please help! SW basically unusable like this!

Screenshot has SW on top (I know, doesn't look like it).