D40x autofocus problem

[Roowhite]

Hi all,

I'm have a problem with my auto focus and wonder if it is coincidence or if i have caused it.

The diagnosis is auto focus is slightly out on the object i am aiming for. It normally aims just behind. The lens is moving and trying to focus just getting it wrong.

I had dust in the view finder and on sensor recently so i gave them a clean, shortly after this problem happened. How does auto focus work and can i have damaged it?

If not, any magic cures? I've tried different AF setting.

As you might guess i'm a newbie to the DSLR world. I was very careful doing the cleaning.

cheers

[OldBoy]

Check your other post for possible answers.