UPDATE: Today I spoke with Adobe tech support. I was told that PSE 6.0 Mac requires Administrator-level account to operate. It is one of the 'underpinnings' of the program and there are no plans to change that.

I find that remarkable! No other program I have requires it to run from the Admin account. For most of us 'non-programming' types, it is a best-practice to run our everyday lives from a standard account, and not subject our Mac systems to potential changes or malware. If I follow Adobe's advice, then my children who want to play with pictures in PSE need to be on an Administrator account! That's just crazy. The whole idea of PSE is to create a consumer-level, easy-to-use photo editing product; why in the world then, would you have to run it from the Admin account?

Adobe, I want my money back.