So hard to find, I figured I'd blog it as a way to make it easier to find later.
Use this document to find or re-create preferences files for Adobe Photoshop CS2 and Adobe ImageReady CS2. Preferences files vary by name and location for each version, with each version storing its own preference settings in a different set of files.
To re-create the preferences files for Photoshop or ImageReady, start the application while holding down Ctrl+Alt+Shift (Windows) or Command+Option+Shift (Mac OS X). Then, click Yes to the message, "Delete the Adobe Photoshop Settings file?" or "Delete the Adobe ImageReady Settings file?"
The article goes on from there. Most of the settings are in:
c:\Documents and Settings\[your login]\Application Data\Adobe\Photoshop