Since I installed the latest AMD drivers(15.7) for my R9 290 lightroom has started to freeze almost everytime that I enter the develop module. I tried to leave the program on to see if it started to respond again. But it keeps saying "not responding" after well over an hour. I tried to turn off hardware acceleration and that stopped the problem for me. But then I of course get the old slow Lightroom instead. I also tried to reinstall Lightroom, but it didn't help. Does anyone have a solution?