How to change fonts?



The problem goes like this:
I've installed Adobe Font Folio to my system (10.2.7). Normally the default font in ie. Safari and Help Viwer is Times (right?). Now it seems like the system selects the alpabetically first font from the Times (which is now Times phonetic something, looks like arabic letters).
So: How to change the default font settings?
Sorry I don't know - I'm a newbie with mac.

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