Camilla Valerius use to walk me to the bridge for the Golden Claw quest, on recent new games she stops in her tracks and just stands there. I can bump her to get walking or just walk to the bridge and she'll come running from way back. It's hardly a problem but recently she's been acting this way I think since patch 1.4. I can't believe I'm still playing Skyrim almost everyday since I bought it at release. Excellent game and great improvements with 1.5 .