minibuffer size

Hi Please consider the following code (defun my-set-xsymbol-8bits () (interactive) (setq x-symbol-8bits t x-symbol-unique t) (message "x-symbol-8bits %S x-symbol-unqiue %S" x-symbol-8bits x-symbol-unique)) When I run it from GNU Emacs, the height of the minibuffer, when displaying the value of the variables is nicely adapted. In xemacs I have to change the height with the mouse. Is there any variable or function I oversee and which could provide that functionality? Thanks Uwe Brauer