xfce4-mount plugin fails to umount device mounted to directory with spaces

[Sergei Danilov]

Hi Fabian, 
I installed the xfce4-mount plugin from the SVN(collected 28feb), 
Now the plugin window does not show my device at all.

I use ivman&pmount to mount it, so there is not any records in the
fstab...but all the things displayed in the mtab.
Here is my cat /etc/mtab|grep sdb

/dev/sdb /media/MP3\040MUVO2 vfat
rw,noexec,nosuid,nodev,quiet,shortname=mixed,uid=0,gid=0,umask=0000,iocharset=utf8
0 0

Best Regards,
Sergei