Running Ubuntu 8.04 on my laptop and i noticed there is a new kernel in software updates. I already have 2 on my boot menu 2.6.24-19 and 2.6.24-23 and this new one 2.6.24-24 which I havn't installed is recommended. Am I supposed to install all these kernels everytime an update presents itself? I don't want a whole bunch of them stacked up like cordwood taking up space for no reason. How many should I keep andd how do i get rid of the one's i don't want.