white characters on screen when press e key in grub2

when I press e key in grub2 to modify some parameter a window appear with a simil-shell, but the characters are white on the suse-lizard-green background, how can I change this color??
if I remember well it should happen after update, becouse before update was black and was better.
thnx, ciao, pier

See http://forums.opensuse.org/english/get-technical-help-here/install-boot-login/478535-where-give-one-time-boot-options-2.html#post2488972

And https://bugzilla.novell.com/show_bug.cgi?id=781698

thanx, it worked :-))