The workspace pager always comes up at xfce startup although the setting is set to not show it in the taskbar. When running xfce, deactivating/activating it in the Settings Manager works fine, but at next login it's there again. I have todays CVS versions of xfwm4, xfdesktop, xfce4-panel, xfce-utils and the latest CVS of xfce4-session installed, but can't really tell which component is causing the problem.
Ok, fixed in CVS.
Please update to latest xfce-utils from CVS.