Simple shutdown

Following your instructions, I go to Application Launcher Menu > Leave > Shut Down. A prompt pops up asking me if I want to Suspend to RAM or Suspend to Disk. If I click on either one, on the next power-up it doesn’t present me with the KDM menu making it impossible to boot another OS. Additionally it skips anything in my user’s .kde4/Autostart directory. What am I doing wrong?