kdesu not working

[yhotg]

i can't open any program with kdesu.
it ask for the passward and then nothing happens

i have my user into the sudoers with
ALL= (ALL) ALL

and of course i can't run those programs from command line because they are GUI
like adept or konqueror or lika that

any idea?

ty

update
when doing kdesu <program> in the terminal i get this message:
kdesu_stub: user no does not exist!

it mean something to anybody?