Pro-geek/nerd movies where nerds DON'T need to change to be happy?

[Sofaspud]

Explorers
Short Circuit (and the sequel, albeit a little less so)
Hackers (though one might argue the 'positive light' qualification - very much YMMV)
Van Wilder (iffy)
The Core (bad science but the nerd saves the day)
The Day After Tomorrow (see above)

--sofaspud
--"Listening to your kid is the audio equivalent of a Salvador Dali painting, Spud." --OpMegs