Personally, if I were you, I would clone everything to an external drive, then do an erase and install of Leopard. Do NOT use migration assistant when the install completes. Instead setup a new admin account (use the same short name as your Tiger installation), then install your Adobe applications. Setting up everything from scratch is not nearly as painful as trying to straighten out the subtle problems that are possible from an upgrade install. The fact that you are getting this error when trying to run Photoshop, and that Spotlight is not working, makes it sound to me like you have run into the by now notorious problems that can result from technical changes in the group set-up between Tiger and Leopard. By doing a clean install you will avoid this. Once you have done the installations of the system and the applications from scratch, you can copy your own data files back from the clone.
One thing to be aware of about booting from Tiger, and then Leopard, is that there appears to be an incompatiblity between the indexing of the two versions of Spotlight, so Spotlight will re-index every time you boot into the other system.
Francine
Francine
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