Solution: In the Multiple Windows Mode, the local Windows Window Manager
is used and any other Window Manager is blocked.
This creates a problem with the Linux File Manager.
For resolving your problems please create the ".xsession" file in your home
During most installations, Xsession should look in the $HOME for a file
which contains the commands that each user would like to use as a session.
In this file, the last command must be without "&".
For example "$HOME/.xsession" file:
/usr/X11/bin/fvwm95-2& #or another window manager
/usr/X11/bin/xterm& # or another command
/usr/X11/bin/xterm # or another command. It must be the last line
(without "&" !!!!!!)
But it is necessary to remember, what if you kill the last command
( which without "&"), the session will be crashed.