My iMac has been freezing lately. There is a coloured ball on screen and I cant do anything other than turn it off and reboot it loosing all my work. Can anyone help?
My iMac is freezing with a coloured ball on the screen. I can access any material and all I can do is switch it off, resulting in lost work. Jermipersal.
iMac (27-inch, Late 2012)