Not sure if it's a mac-specific problem (let me know if I should move it), but every time I try to open a pdf file, Microsoft Word tries (and fails) to open it. I have tried "open with..." > Preview with the "always open with" box checked on multiple occasions, and it works for a while, but by the next day it is always set back to opening with Word. Any ideas what the culprit could be?
Update: this seems to be happening with txt files too... I never try to open either pdfs or txt files in Word, so I'm not sure how it keeps getting reset...