Have tried the last version of gnome-volume-control in rawride?When I insert an MMC, SD, or CF card into the reader, gnome-volume-manager starts using up 100% CPU, so I have to kill it. If I re-run it from the commandline, automounting starts working again (for other devices) until I insert an MMC, SD, or CF card again.
If I remove the card reader, insert the card into the card reader, then plug it back into the USB port, the behaviour is the same.
Regards, Msquared...