jerries giving me the willies

I'm having some problems with the "jerries" again. I reported this
phenominon earlier. I hope it's nothing wrong with my hearing or
ability to discern pitch as a composer. Otherwise, I will have to
move to a *much* more aleatoric style... hmmm.

The problem is, with the new jerries examples I'm not hearing
the "fundamental" very well. Anybody else (of the two other people
who are trying this) experiencing this phenominon.

What I get sounds like, instead of a perfect fifth opening, something
that sounds more like a minor third... the 5:6 of the 4:5:6. I'm not
getting the "4."

Of course, there really is *no* third in there, but because I can't
hear the fundamental I seem to want to supply one. It's a curious
situation. Could it have something to do with some problems I am
having with the timbres?

So I hear what sounds like a 5:6 and *then* the 5 transposed up
another octave, becoming a 10, I guess. So the 5:6 becomes a major
sixth at 6:10 or 3:5.

Then the "6" drops out, and I'm left with the 10...

But it's hard to judge it all in these samples without hearing the
fundamental clearly.

What's going on here? I didn't seem to have a problem when the
triads were played as simultaneities in the first round of jerries...

Anybody *else* having trouble hearing the fundamentals??

Thanks!

Joseph