I know this is a common problem. I'm running C4D on Windows 7 and every time I start it I have to change the graphics cards settings and whenever I'm in the program and I open the windows explorer box to open or save a file, the whole display goes 16 bit. I know it's something to do with my graphics card, but is there any way around this? Really annoying as I've started using it a lot more for doing work!