Ps CS5 "Print Page Setup" dialog will not open

Question

Hello: I was printing via my Photoshop CS5.
I accidentally created a paper size of 0cm x 0cm and attempted to print (up to this point Photoshop and Print worked).
I now (permanently) get an error message: "There was an error opening your printer. . . "
Photoshop >File >Print. . . will not open the Print Page Setup.
Photoshop >File >Print one copy (works, but still tries to print 0cm x 0cm, the printer spits out a blank page).
Using the (Mac/Apple) app 'Preview' I deleted the paper size preset '0cm x 0cm'.
apps; Preview, Text Edit, Mail, Word, . . . all print properly (they can open the 'Print Page Setup' dialog).
I set up two other printers (now three in total) and they work with all applications (except Photoshop).
I uninstalled and re-installed Photoshop and my printers, including all their preference files.
Also, I again deleted Photoshop preference files by opening Photoshop while pressing 'Shft-Opt-Cmd'.
In 'System Preferences' >Print & Fax >Printers; I reset my computer's "Printing System".
I repaired 'Disk Permissions', Safe Boot and have also done multiple restarts.
Since only Photoshop has a problem, I believe Photoshop has (somewhere) set a preference thinking it's default paper size is 0cm x 0cm which is throwing an error and preventing the 'Print Page Setup' from opening.
I updated Photoshop Adobe Air, Printers, . . . after re-installing.
I ran an app that clears my computer's caches.
I reinstalled (and updated) my computer's operating system (OS only, not my account and data).
I would appreciate your help. Thank-you, M_L_R
Mac OS: 10.6.8, Apple/MacPro 2009, 2 x 2.93GHx 8-Core processors, 16GB of Ram (DDR3 1066 MHz)

Answer 1

Hello: I repaired my (Print: Page Setup. . . dialog panel will not open) problem.
The fix was one of the many suggestions I researched in the 'Adobe Help'.
    Unfortunately I dismissed this solution (until now).
    reference: http://helpx.adobe.com/photoshop/kb/error-install-printer-photoshop-cs4.html
        see >Solution 7: Create a different user account and run Photoshop as that user.
Some of the (following) procedures may not be necessary, but the core solution is in there. . .
    Mac OS X v10.5 or later >System Preferences >Accounts >Guest Account (sharing only) >Allow guests to log in to this computer >Automatic Login (for Administrator, still active - optional) >then log out of the (main/administrator) account >then Log in to the guest account >go to the applications folder (in the guest account) >open Photoshop >create a new simple document (example: create one text letter) >Print. . . (in this situation Print: Page Setup. . . the dialog panel opens [remember: this is the error problem in the main account]) >(do what you normally do) select your printer >set up a page size and printer options >print. Save that Photoshop project >delete that Photoshop project >Log out (of the Guest account) >Log in to your regular (main/administrator) account >the Guest account can now be deactivated (optional) >open Photoshop (in your main account) >test print a simple document >the (Print: Page Setup. . .) dialog panel now opens >(do what you normally do) select your printer >set up a page size and printer options >print. Save that Photoshop project >delete that Photoshop project >the (Print: Page Setup. . . dialog panel will not open) problem is repaired. Bye for now, M_L_R