I used to have a ATI 4850 card and have resently upgraded to a 7800 series.
I uninstalled CCC and reinstalled the latest version (Win 8.1 64 bit)
When I wake a PC I hear a sound (the same sound you get when you unplug a USB drive) and then only one of my 2 monitors is working.
I then have to go to display properties and select detect after which the second monitor starts working.
This happens about 50% of the time when waking up from sleep.
Any ideas what is cusing this? I didnt have any problem with the 4850.