AMD has just released new graphics drivers for both the Radeon HD 5800 series and Radeon HD 5700 series. I recommend all Radeon HD 5000 series users upgrade to these newer drivers, which will work on Vista/Win7 32-bit and 64-bit via this one package. These drivers contain a few bug fixes over initial HD 5800 series driver, and also contain a performance optimization related to the PCI Express bus.
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