Thought i'd have a go at some of the games in my Steam Library that I hadn't shown any love to recently.. But they wont run? COD4 - (Was going to run the Campaign again) Bioshock (1&2) GTA4 LA Noire Fallout 3 All wont work! They startup fine, then as soon as I click Play from their startup menus.. They go black screen as if to start up the Dev movie clips then hang and crash! Does anyone have a workaround for this? As i've bought them all in the last 9 months, so would hate to have wasted my money!