Unable to mount removable media in nautilus after 2.26 upgrade: dbus pending operation

[Mark Kirkwood]

Post Gnome 2.26 and Xorg 7.4 upgrade I get this when trying to mount usb 
or cdrom media:

DBus error org.gtk.Private.RemoteVolumeMonitor.Failed: An operation is 
already pending


For the usb case, in /var/log/messages there is:

May  1 21:13:52 zmori root: Unknown USB device: vendor 0x05dc product 
0xa740 bus uhub4
May  1 21:13:52 zmori kernel: umass0: <Crucial Gizmo!, class 0/0, rev 
2.00/11.00, addr 2> on uhub4
May  1 21:13:53 zmori kernel: (probe0:umass-sim0:0:0:0): TEST UNIT 
READY. CDB: 0 0 0 0 0 0
May  1 21:13:53 zmori kernel: (probe0:umass-sim0:0:0:0): CAM Status: 
SCSI Status Error
May  1 21:13:53 zmori kernel: (probe0:umass-sim0:0:0:0): SCSI Status: 
Check Condition
May  1 21:13:53 zmori kernel: (probe0:umass-sim0:0:0:0): UNIT ATTENTION 
asc:28,0
May  1 21:13:53 zmori kernel: (probe0:umass-sim0:0:0:0): Not ready to 
ready change, medium may have changed
May  1 21:13:53 zmori kernel: (probe0:umass-sim0:0:0:0): Retrying 
Command (per Sense Data)
May  1 21:13:53 zmori kernel: da0 at umass-sim0 bus 0 target 0 lun 0
May  1 21:13:53 zmori kernel: da0: <Crucial Gizmo! 1100> Removable 
Direct Access SCSI-0 device
May  1 21:13:53 zmori kernel: da0: 40.000MB/s transfers
May  1 21:13:53 zmori kernel: da0: 1912MB (3915776 512 byte sectors: 
255H 63S/T 243C)

However the device can be mounted directly via mount without issues (and 
worked fine with Gnome 2.24 and Xorg 7.3).

For the life of me, I can't seem to see where dbus/hal put their diag 
messages... so that's about it. Suggestions welcome, as it would be good 
to have this working!

Cheers

Mark