I was using Catalyst 4.10 drivers, and everything was fine, but I installed the new 4.11 drivers, and now I can't get my monitor's refresh rate to go above the default 60Hz, even though it reads that it is set at 100Hz. I noticed that they added an extra monitor attributes tab, and the options to change the refresh rate are greyed out. I reinstalled my monitor driver, so I know everything is working. What should I do?