Go to your account and check the "allow user to administer etc." if it is not already checked.
I have a feeling that it is.
I don't feel that Adobe feed you correct information. IF CS3 has to be run for ROOT, you can bet that half the Mac users would be up in arms about it.
Fortunately, there are a number of posters on here that may well have the correct answer for you.
P
I have Mac 10.5.2 which is working great. Except for my Photoshop CS3 gives me a "could not complete your request program error". I have a user created in my name that runs the Photoshop CS3, but Adobe told me to run it from my root user and it worked great.I am trying to configure my regular account just like my root user account, because Adobe says it s a permission error.

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