Limit on number of APs? Some way to force-rescan?

I'm sitting here in the IETF, and from where I sit I can hear at least
15 Access Points, some A, some B/G.  I get this number by manually
running "iwlist ath0 scan" and looking at the results.  I see
"three" ESSIDS:

[warlord cliodev ~]$ iwlist ath0 scan | grep ESSID | sort -u

However, nm-applet is only showing IETF66B, and wont let me connect to
IETF66A, even when I tell it to by "Connect to other wireless

Now, going back to my scan-list, the IETF66A network doesn't show
up until "Cell 10" in my scan list.   Is there some limit to the
number of returns from a scan?  Does NM stop looking after some

Right now I can't figure out how to tell it to connect to the A
network.  I can see it's there, but NM doesn't see it.  I've tried
restarting NM to no avail.  I haven't tried rebooting, but honestly I
shouldn't have to.  Is there some way to tell NM: "Hey, I know there's
more networks out there -- can you go look again right now?"

Any suggestions of things to try?  I suspect that my situation will
change in an hour when I move to another room.


PS: Why do I feel like I really stress test both Madwifi and NM all
the time with my personal usage patterns???

       Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
       Member, MIT Student Information Processing Board  (SIPB)
       URL:    PP-ASEL-IA     N1NWH
       warlord MIT EDU                        PGP key available

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