Photoshop CS5: can't see all tools

I have PS CS5 on mac OS 10.6.4… I have a Tools problem… on tools where there’s a “callout” for another tool, I can’t see other tools, only tool that shows in palette… which means, for example, that I can’t switch from paint tool to pencil tool, from dodge tool to burn tool, from blur tool to sharpen tool, etc…

I looked in prefs, don’t see how this can be configured…

thank you…

Hmm, do you see the little arrows in the bottom right corner of each tool? First thing I’d try is quit Ps and restart. I don’t see any Preferences for that. Perhaps Ps didn’t install properly?

EDIT: Does this discussion help:
http://www.bigresource.com/Tracker/Track-photoshop-Nuv4Uofr/