My photoshop is opening in low resolution on my new Mac (I can see this from the application's 'get info'). How can I stop this from happening? It wasn't doing this before, but I needed support from Apple who told me to 'Verify' the hard drive in disc utility.
CS4 was ready for retina displays? Are you sure?
It wasn't doing this before
Do you mean before you got a higher resolution monitor?
Unless I got it wrong, but I thought everything looked fine a few days ago when I installed the software. Could it be the case that I'm wrong and I need to bite the bullet and buy cc?
I don’t think Photoshop CS4 (released 2008) had been ready for high resolution monitors.
But before you buy anything take advantage of the free 30 day trial to make sure the application works as expected with your OS and hardware.