Rampant Games - You Got Adventure in My RPG!

Another interesting post from the Rampant Coyote on the inclusion of Adventure game elements in RPGs:

I still like a dose of adventure game in my RPGs. Maybe because there's still some old programming in my head that still mixes 'em all together like they did in 1981, but a little bit of the old adventure game puzzle-solving makes the grind go down easier. So long as it's not too much of a head-thumping experience, that is - and with the ease of obtaining hints on the Internet, that's not too much of a problem anymore.

The problem is that the adventure game puzzles can run counter to what I consider good RPG design principles, and that creates a jarring experience.