When Did Paul Rudd Become a Movie Dweeb?

Usually actors are type cast for the rest of their life in their career launching role.  But not Paul Rudd.  He entered the scene as a witty know-it-all in Clueless and since then he’s played every dork on the planet.  I don’t get it.  Because I wasn’t sure if I misread him as sexy in Clueless, I re-watched the clip below and confirmed it.  So what happened?  He’s obviously a working actor, and is therefore not too concerned about his type-casting, but I’d still like to see him return to his roots.  It’s hard to even imagine him as sexy after his many guy-who-never-gets-the-girl roles.