Interesting Problem when screensaver comes on

I have an interresting problem that occurs any time my screensaver comes on. The screen blanks like it is supposed to but then goes to a new login screen. If I do the log from this screen, a new xsession starts on CTRL-ALT-F8. I can then switch to CTRL-ALT-F7 and see my previous session. OR If I first do CTRL-ALT-F7 (instead of logging in through the new login screen) then my first session returns and I get the standard screensaver login. I am using SuSE 8.0, kernel 2.4.18-4GB , KDE 3.0.4 and the simple blank screen screen saver. Anyone have any idea what I may have done to cause this odd behaviour and how I might fix it. TIA, Darrell Cormier