Currently Being ModeratedMar 16, 2013 10:47 AM (in response to Sophia)
Just to further add...it's as if the monitors are not coming out of sleep mode. I out the computer into sleep and after several attempts etc I managed to get the monitors up and running so was able to back up files I needed. When I rebooted the monitors again won't wake up. If this is an update..well done apple for screwing up!
Currently Being ModeratedApr 5, 2013 10:05 AM (in response to Sophia)
Had the exact same problem with my iMac and 10.8.3. After 2 weeks of trouble shooting, it turns out it was my video card going bad. Replaced the video card and it works great...
Currently Being ModeratedApr 5, 2013 10:48 AM (in response to Sophia)