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As I just started up my iMac, I was cleaning the keyboard, and noticed the iMac was making noises, and showing a series of letters in the top right corner of the screen. It is now running much slower, making a hum noise, and there's a purple hue to the screen. I feel I must have changed the settings or something.
Any suggestions would be much appreciated!
It's a 5 month old iMac, OS x, Version 10.9.5.
Many thanks,
Richard
Any suggestions would be much appreciated!
It's a 5 month old iMac, OS x, Version 10.9.5.
Many thanks,
Richard