my config is : Sapphire Radeon r9 280 dual-x, one HP w2207h (center main screen) on displayPort, and two Lenovo L1900pA (left and right screen) on DVI.
with old driver coming with amd-catalyst-14-9_win7-64bits = no problem
with new driver coming with amd-catalyst-15.7.1-win7-64bits on win7 or amd-catalyst-15.7.1-win10-64bits on win10 main screen is ok,
but left and right screens shows with poor quality (like bold, not clear, fuzziness, specialy on top)
in advance thank you for fix