[gnome-bluetooth] gnome-obex-server won't receive files

[Graham White]

I have a Thinkpad T42 running Ubuntu Hoary, and a Motorola V547 mobile
phone. I can do almost anything I want with the bluetooth connection
to the mobile: ppp over gprs, send files to the mobile from the
thinkpad, send sms with gnome-phone-manager, and so on. However,
I cannot send files to the thinkpad from the mobile: the mobile
discovers the thinkpad correctly, but when I select it for
file transfer I get a dialogue box on the mobile saying
"Unable to Connect". hcidump -x on the thinkpad shows, for each
failed connection attempt, the following three lines:

> HCI Event: Connect Request (0x04) plen 10
  BF AA 58 8A 12 00 04 22 52 01
> HCI Event: Command Status (0x0f) plen 4
  00 01 09 04
> HCI Event: Connect Complete (0x03) plen 11
  21 29 00 BF AA 58 8A 12 00 01 00

This behaviour is exactly the same whether I have gnome-obex-server
running, or obexserver running, or *nothing at all* running. 

And I have the device class correctly set; that is, I have
a line in hcid.conf on the thinkpad saying

        class 0x100100;

(in fact, if I had the device class wrong, the mobile couldn't 
discover the thinkpad, and it can). 

Anyone got any ideas?

Graham White