Conn : Preprocessing Error

Dear all,

When i click on Preprocessing TAB : I am getting following error , could some one please let me know how i could resolve it
 

" ERROR DESCRIPTION:

Reference to non-existent field 'steps'.
Error in conn_setup_preproc>conn_setup_preproc_load (line 2168)
STEPS=CONN_x.SetupPreproc.steps;
Error in conn_setup_preproc (line 317)
if multiplesteps, conn_setup_preproc_load(dlg.m8f); end
Error in conn (line 890)
ok=conn_setup_preproc('',varargin{2:end});
Error in conn_menumanager (line 120)
feval(CONN_MM.MENU{n0}.callback{n1}{1},CONN_MM.MENU{n0}.callback{n1}{2:end});  "

Thanks
Vasudev