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Sorry to Off-Topic, but I downloaded the http://help.adobe.com/en_US/Photoshop/11.0/photoshop_cs4_help.pdf file but where do I install it so that F1 loads it instead of the internet browser?

Beats me. I tried that once before and again just now, and can't get it. There's a page in the online help that almost seems to be explaining how to do that, but just kinda stops, like it loses interest or something. ;-)