I have the same problem, but only using nautilus. pcmanfm works fine,
just like nautilus used to in 9.04.
bash > uname -a
Linux serenity 2.6.31-16-generic #52-Ubuntu SMP Thu Dec 3 22:07:16 UTC 2009
x86_64 GNU/Linux
bash > gvfs-mount -oi
Monitoring events. Press Ctrl+C to quit.
(execute "nautl
Started happening to me when I upgraded to Hardy Heron.
Abandon nautilus for PCmanFM until it's fixed.
My NTFS partitions and external harddrives stopped automounting. To fix
that I put in my .bashrc (all one line):
alias fixfuse='sudo mv /usr/local/lib/libfuse.so.2
/usr/local/lib/libfuse.so.2.