I'm kinda stumped here guys and dolls

.... I was running Mepis on one hard drive and Slackware on another (just interchanged them) And decided to wipe the Mepis disk and install Kubuntu 6.10 which seems to be working pretty good but I've run across an annoying feature where KDE logs out anytime I close the laptop.... This did not happen with either other distro, instead it would just blank the screen out which a Fn + F8 turns the screen back on... That's what I'm looking to change about this current install.... The laptop is a Dell C610 and the Distro is Kubuntu 6.10
Thanks for any help..
HRS