Please forgive me if this question sounds silly.
I am completely new to DSLR. I have recently purchased a used 30D and new 50mm 1.8 lens. My question is regarding auto focus.
When I shoot in the basic zone modes with the lens set to AF the auto focus works well. When I am in the creative zone modes with the lens set to AF the lens does not attempt to auto focus at all-ever. Do I need to use manual focus whenever I shoot in the creative zone or is this a malfunction of the lens or camera?
I searched through my manual and could not find the answer. I have learned so much reading through the threads here but didn't find this question on a search. Thanks in advance for any help 

