I'm using now Kubuntu KDE Remix (kubuntu-kde4-8.04.1-alternate-i386.iso) which has kernel 2.6.24, I dunno if it's the same as the regular Ubuntu w/ GNOME or KDE 3.5.x but this one is working fine and no longer have to use noapic or anything else, it just works.
I'm using now Kubuntu KDE Remix (kubuntu- kde4-8. 04.1-alternate- i386.iso) which has kernel 2.6.24, I dunno if it's the same as the regular Ubuntu w/ GNOME or KDE 3.5.x but this one is working fine and no longer have to use noapic or anything else, it just works.