PS CS4 almost unusable with snow leopard

Question

Installed Snow Leopard.  Ran the adobe uninstall for CS3 then did a fresh install of CS4.  Downloaded all the updates.  When I open Photoshop I get a constant stream of the same error message that reads "Could not complete your request because of a program error" screen shot attached.  It makes Photoshop pretty much unusable.  I'm not having the same problems with Illustrator.  I'm working on a MacBook Pro w/ 1.83 GHz Intel Processor and 1.5 GB 667 Mhz Memory.  If anyone could help me suss out the problem I'd be eternally grateful.
Cheers,
Bummersville

Answer 1

I have run CS4 with Snow Leopard installed by three different methods:
1. Default Upgrade method to my Leopard volume
2. Erase and install SL then migrate everything from my Leopard volume.
3. Erase and install SL, install fresh CS4, no migration, no other software installed
All three crash Bridge and Photoshop frequently, especially while using the output module to make PDF contact sheets (crashes while entering the settings).
1 and 2 also crash on quitting the prog, (but my Leopard has spells of doing that too)
Machine is Mac Pro 4 x 2.66 ver 1,1 with 8Gb RAM
Did all the standard stuff before and after installs, permissions, DU etc plus PRAM, SMC. Also trashed the prefs in Bridge and CS4.
The fact that the "erase/install/CS4 only" method crashes tells me that there is something hardware related in my machine (and probably other peoples too) which SL + CS4 doesn't like, and that there is no point in chasing software solutions.
I would be grateful if anyone who is having no problems with CS4 and Snow Leopard could spend a few minutes making contact sheets with the output module...use all the options. I have successfully done several contact sheets, but also had most crashes while entering the settings.
Thanks