Hi, I have been given a computer which I am going to use as a base for my computer build which has an ATI graphics card incorporated into it, however did not have a hard drive, and in turn an operating system. I (very proudly ) took the drive out of an old external case and installed Windows 7. Everything is working well apart from the graphics card which is not compatible with my version of windows and so I need to use the integrated graphics card until I replace it. My question is, how? Thanks.