hey guys, help me out with something. I went to load up L4D2 recently and Steam prompted me about my drivers needing an update. Well, I went ahead and did the update, trusting Steam.
Now my HL2EP2 models are glitching out...they are all missing about 10-25% of their triangles in-game. When I walk around and move, they glitch out and lose some of their surfaces, as though some of their surfaces are turning invisible or one triangle of the model seems to stretch away through brushwork to an impossibly distant point. Also, this is occurring in Hammer and that really is bugging me and slowing my work.
Finally, some weird stuff is happening with my Firefox. All of the words in Wikipedia articles show up in bold now, as well as all of my Gmail and Google search results. Very strange.
I have an ATI Mobility Radeon HD 3670. It recently went through a software update that was prompted by Steam. I now have an updated interface with my "Radeon Graphics Control Center" but I never really touched it before so I have not idea how to tweak settings. It honestly looks like nothing can be tweaked.
I just want a new computer.

But thanks in advance for any help that can be afforded to me.