Hi,

I have installed xfce4 with apt-get, but somehow i screwed the xfce4 under "serge@rx50".
The panel is all gone it has no icons and the right click menu is also gone, but under "root" it works fine. I have used "apt-get remove xfce4" and then reinstall but it's the same thing, so i think i remove the component but the config stays.
So I want to remove whole xfce4 and then reinstalled it, i think this is a good solution but i don't know how to do it. (Sorry for my bad english )

when using "apt-get remove" you are keeping config files. If you use "apt-get purge"
you remove config files for the system but you are still keeping user's config files. the best way to remove these files is to make:

sudo aptitude purge xfce4

then go to /home/<user>/.config and delete xfce4 folder. Then do

sudo aptitude install xfce4

for removing or uninstalling apps use aptitude, way better that apt-get as it removes obsolete files and packages when removing apps and avoids dependencies conflict. In general aptitude is way better that apt-get imo

If you have problems with the configuration of only on user you don't need to reinstall the complete DE, just delete the config files for that user (/home/USERNAME/.config/xfce4), XFCE will automatically create a set of default ones the next time that user logs in.