P: CS4, CS5, CS6, CC: Cursor disappears on Mountain Lion (MacOS 10.8)

This may be a solution. First, some background.
I experienced the disappearing cursor in CS5.5 after upgrading to 10.8 from 10.6. I reverted to Snow Leopard successfully. A couple of weeks ago I decided to give 10.8 another try. But this time I skipped upgrading over a Snow Leopard installation.

I backed up my boot drive, wiped it and then booted my 10.8 test installation from an external disk, restarted, and booted the Recovery partition. I installed 10.8 on my MBP's internal drive from the Recovery partition. I then restored my apps and files, after OS installation, using Migration Assistant.

After an hour of running small to large cursor exercises, Photoshop behaved as it should. No cursor issues. Last Friday I upgraded to CS6. So far so good.

So, upgrading over the 10.6 install may be the culprit, forcing the misalignment of ones and zeros that have caused so much pain and suffering. And if this "solution" continues to work, I'll likely tear everything apart and do a complete virgin install of everything from the ground up.

You spoke to someone who has no idea what they are talking about.
In this case the car doesn't work to start with. This cursor bug affects MANY applications, across the OS.

And many bugs were filed during the Mountain Lion beta that still have not been fixed.

Please let Apple know that you are disappointed with their failure to fix their software, and further disappointed in their attempt to blame other parties for bugs that they have already admitted are in the OS.

I spoke with Apple Care about this problem. Apple claims that the problem lies with the software developer. In this case Adobe.

The rep said think of it like this,
"We design the car, they design an accessory for the car. If their accessory doesn't work correctly it's not the fault of the car."

He also said,
"Software developers had Mountain Lion to work with months in advance of its release. If the developer didn't work out their bugs for the official release that's not Apple's fault."

A restart won't necessarily fix the curser disappearance problem. I have not found a solution yet. My work-around is to zoom in a bit (control+scrolling). Zooming in a little with this Mac function causes the curser to reappear. Zooming back out to regular screen view will cause the curser to disappear again. I wish there was a fix to this problem, but this method or a quick swipe into MC and out again to bring it back is all I can do to cope.

A restart won't necessarily fix the curser disappearance problem. I have not found a solution yet. My work-around is to zoom in a bit (control+scrolling). Zooming in a little with this Mac function causes the curser to reappear. Zooming back out to regular screen view will cause the curser to disappear again. I wish there was a fix to this problem, but this method or a quick swipe into MC and out again to bring it back is all I can do to cope.

This does also happen on Retina MacBook Pros with Nvidia graphics.

I don't know - other users are seeing the cursor disappear in other apps. Again, you only have a small sampling of the problem (a sample size of one, out of millions).

You can tell them, but I cannot give you the RADAR number.

Chris, could you explain what is a "cursor scaling in the OS controls"?

I do know "accidental use of gestures" and "accidental use of OS keyboard shortcuts that change app focus" are not the causes here, since we know what we doing.

Thanks.

Disappearing cursors on OS versions prior to 10.8 tend to involve cursor scaling in the OS controls, accidental use of gestures, or accidental use of OS keyboard shortcuts that change app focus.
We had almost no reports of such problems until 10.8, and with 10.8 the cursors disappear in many applications without other factors (like the aforementioned causes) being involved.