Sounds like memory corruption.
What OS are you running?
Do you have the latest update for Photoshop installed? What kind of license do you have (cloud or perpetual)?
I believe I am on Snow Leopard.
License, I think is Perpetual. and how can I find out if I have the latest update for Photoshop?
No one else seems to be having this problem. We are all on the same OS and all have CS6 installed the same way.
In Photoshop choose Help - System Info, copy the information, and paste it into a post here. That will tell a lot of things, including the answers to the above, and may help folks here make some specific suggestions.