Problem with MAC Photostream activation

I am attempting to activate photostream on my MAC. I have gone to preferences and into the icloud settings, but the photostream will not allow me to activate it. It is displayed in a lighter color and I cannot check the activation block.

Does anyone have an idea what the problem might be?

What other device are you trying to photo stream with? Do you have the iCloud settings for photostream on the other device activated?

I'm no expert here but it is working fine for me, so I will try and help...

derekeverett said:

What other device are you trying to photo stream with? Do you have the iCloud settings for photostream on the other device activated?

I'm no expert here but it is working fine for me, so I will try and help...

Click to expand...

I have two iPads and two iPhones synced together for photo stream. They share fine... Yet my MAC will not!

do you have iPhoto installed? (iPhoto is mandatory, in order to activate Photostream on Mac)

With both iPhoto and Aperture you will see a heading in the left column called photo stream as my screen shot. You need to click this to setup photo stream in either iPhoto or Aperture.

Also, Mac is short for Macintosh. It's not an acronym, so there's no reason to capitalise it.