Does it behave this way with any file, or just one? Maybe the print settings that are stored in the file's metadata got corrupted. One way around this is to copy > paste into a new file and print that.
If it's global you could try to reset Photoshop back to factory defaults by trashing the preferences. Hold <shift+ctrl+alt>/<shift+cmd+opt> when launching and make sure you get a confirmation dialog. SAVE OUT any custom actions, brushes etc. first!
This has nothing to do with your activation issue.
thanks for the ideas. It behaves this way with any file. All of the other programs on my computer can find the printer. I still have CS2 on my computer, so I have been printing out of that program. When I hold down <shift+ctrl+alt> I just get a "properties" dialog box with Security, Details, Previous Versions, General, Shortcut and Compatibility buttons. None of them allow me to reset anything.