how change default paper size in emacs for tex-dvi-view-command

["J.S.Sahambi" <jsahambi@iitg.ernet.in>]

I am using Emacs and auctex in Debain/unstable. When I give the command 
"C-c C-c" after compiling a .tex file, the command that is executed by 
Emacs is:

 View command: xdvi my-article.dvi -paper us

I want to know how to change the paper size for this command.
I have tried to put the folloiwng line in ~/.emacs but the bevaiour does 
not change:

(setq tex-dvi-view-command "xdvi  -paper a4")

Any help will be appriciated


Thanks
JSS