I've been using Windows 8 Consumer Preview 32-bit on my desktop for months, and recently did a software update through Windows Update. An update for my Radeon HD 5450 driver (Catalyst) to WDDM 1.2 was in the list of updates, and installed.

When I went to play CS:GO and discovered that when loaded, it would not display the GUI (menus, sometimes even the background) after a few seconds of flickering GUI. I can still navigate the menus 'by feel' and connect to and play on servers, but have no GUI, no buy menu, no map, no cross-hairs, no health indicator, etc.

I have tried CS:S, which works, and Borderlands, which doesn't even load the intro videos before the first menu screen. I've tried re-installing Catalyst from the AMD website, and the beta, and tried uninstalling and reinstalling CS:GO. The problem with it (and Borderlands) still happen. What broke, and how can I fix it? I'll be reinstalling soon anyway to dump Windows 8 back to 7, but would like to be able to game until then.