Canon EOS33 Autofocus

[mmgbmm]

Hi, I bought a new Canon EOS33+50mm f1.4 USM camera, the lens is really sharp, but I’m having a problem with the Autofocus system; it fails to focus on too many surfaces (not just blue sky or flat solid colour surfaces). On the other hand I had a Minolta Dynax 5 which never fails to focus on anything even solid colour surfaces! Is there something wrong with my camera or Minolta Autofocus system is much better than Canon?

Regards
:?: