Recently upgraded Windows to 8.1 and now even though the driver auto-update states that the graphics card driver is current..any graphic intensive program that I try to run says that it is out of date. I can't find a driver for an ATI Radeon HD 2600 series that is compatible with Windows 8.1. Anyone know of one or of another solution? I don't have the Windows 7 disk to revert back to the older OS.