with no spaces between characters (although I'm not sure that matters) should
be the correct syntax for the line in /etc/lilo.conf. Remember that you must re-run lilo after making any changes changes. Type /sbin/lilo.
I read a post recently by someone who needed to use a different syntax to get his/her memory recognized, but I don't remember what it was at the moment. I'll repost if I can find it.