right click menu stopped working

hello everyone

i am quite a big noob in linux, but you probably figured that out since i posted in this forum.

i thought i got a hang of it when i managed to remove the ugly linpus thingie that came with the computer, to use xfce.

and it worked great! wohoo! exept one thing, the thunar manager did not work at all.
so i googled and found out how to reinstall the thing, and i did.

but since, my right click menu does not work. and because i have the xfce i cant enable it in the xfce-setting-show (there is no desktop icon there). is there a terminal command that activates it for me again?

thanks for the help =)