Ya I checked that.

I think that typically there is a small gap between the upper cover and the top tube (I'm not sure, maybe someone could check their bike), and that for some reason the combination of this specific headset and frame isn't working.

I just talked to a friend that told me that he had the same problem with an FSA headset and a Specialized E5 frame. He said the mechanic put a spacer under the upper cover to produce a gap between the cover and the top tube. So I guess that should work until maybe I can get a better headset such as the Cane Creek IS-8 which hopefully won't have the same problem