new to ksh ... redirections do not work well ?

[spermwhale_warrior]

Here is a problem with ksh :
I tried to redirect the error standard output on the standard output, and the standard output on a file called foo.
cat nothing 2>&1 > foo
it doesn't redirect the error output. the error appears on the console, and foo contains nothing.
I have a problem with X, and I can't say don't show graphical things, just write out the errors right_here.