Today I had a couple of times where the autofocus didn't work and I just got a blurry image. Each time I turned it off and it seemed to work but while it wasn't working, it didn't even work in manual focus. This has got me concerned. If it does it again it'll have to go back as I can't see it being a software glitch. Has this happened to anyone else?
Haven't seen that myself. Was it under low light or was the subject something that's difficult for the camera to focus on? See page 69-70 of the manual to be sure this wasn't the cause.