Have just finished new install of Win 7 64bit. The harddrive was wiped clean beforehand.Everything else loaded without a hitch including 3D Guru's Driver Sweeper, but RivaTuner will not extract. Iv'e tried with 3 different browsers, ( Download manager turned off ), from various different sources but the result is always the same. It just will not extract. I've even tried WinZip and that tells me that the file isn't a proper zip file. Any ideas anyone? TonyC.