altq configuration question

[Brian Camp <sevenn@nezzwerk.net>]

I'm having difficulties limiting incomming traffic with altqd under 
3.0-stable.  The situation is as follows:

computerA is 10.0.0.1
computerB is 10.0.0.2

computerA is running altqd with the following altqd.conf:
interface dc0 bandwidth 100M cbq
class cbq dc0 root_dc0 NULL pbandwidth 100
class cbq dc0 def_dc0 root_dc0 borrow pbandwidth 95 default
class cbq dc0 compb_frm         def_dc0 exactbandwidth 64000
        filter dc0 compb_frm    0 0 10.0.0.2 0 0
class cbq dc0 compb_to          def_dc0 exactbandwidth 64000
        filter dc0 compb_to     10.0.0.2 0 0 0 0

computerB downloads from computerA at 64k, but uploads at several megs a 
second (clearly not limited by altqd).  My question is, why isn't computerB 
-> computerA limited and what should I change to limit it.

Thanks in advance

Brian