What's your OS, Sycho? I've got pretty much the same setup, with Windows 7 64 and cannot install the 10.3 driver. It simply states: 'fail', and device manager gives me a 'Driver is not intended for this platform' message.
Same monitor, two Sapphire Vapor-X OC 5870s in Crossfire. (have tried with just one in, which didn't work either)
Same monitor, two Sapphire Vapor-X OC 5870s in Crossfire. (have tried with just one in, which didn't work either)