So with almost all shadows (most noticeable with startup splash screens and WPF applications) on my MBP under Windows Vista, I get what I can only describe as tearing and corruption. I have tried the driver supplied with boot camp and over 5 drivers from laptopvideo2go and all exhibit this problem. Anyone know what might be the cause or a possible solution? I'm stumped. One image is a menu item with corrupt graphic rendering and the other is a splash screen shadow issue. Both work fine on other computers.