Quote - I just found this, it might help:
www.thelightsright.com/node/69

I don't know what all is there and don't feel like messing with it now but there might be an answer there somewhere.

I found this little tidbit:

Quote - Go to window/extensions/connections and select offline as the option.  (You have to log in with your Adobe ID)The help file will come up in a browser window offline. Compliments of Adobe tech support.

It loads the same file as the online version but that file isn't the PDF file I downloaded. At least it allows you to get help offline though.  Another issue I'm having is CS4 isn't recognising my ATI Radeon X1250 as a video card so I'm not getting any OpenGL options.

Sorry for the OTness of my posts but I'm getting answers quicker in here than the Photoshop forum.