I've just got my first DSLR (an old Canon 1000D) and I'm having problems with autofocus:
When I'm in full auto or any scene mode (sport, portrait...) it works fine and I can make photos normally, but when I'm in P, Tv, Av, M or A-DEP, the camera doesn't seem to detect that I'm in autofocus. It tells me that I'm in MF (even though I'm not) and doesn't focus. I have to turn to MF if I want to use these modes, which is sometimes a problem.
I've cleant the contacts, checked that I'm in AF, checked the configurations and I can't see the reason. It happens in two diferent objectives (Canon and Sigma) and does not depend on the image (not too close, too dark problem).
It may be broken, but I don't know since it works just fine in some modes. The camera is not on warranty since it is an old camera from a relative.
Any help will be very welcome.
Edit: I forgot to say that I still can make photos in AF even though they are blurred.