The append option isn't (suposidly) needed in any kernel after 2.0, dunno if it was a typo but your mem line in lilo.conf should be
Code:
append = "mem=192M"
What type of system you running? Whats reported by
Also what kernel are you running?
Can't offer any suggestions off the top of my head but give me more details and i'll have a think!
cheers.
Jamie...