okay Neal (sorry, my dad's name is Neil),
here's my /home/az/.config/lxpanel/LXDE/config :
and my /home/az/.config/lxpanel/LXDE/panels/panel (the red button-part):
type = launchbar
well, the red button list seems to be fine now - i don't know if it was your 'lxde-logout' in terminal or what, but it's all there now. mission accomplished.
thanks very much to Melodie, Scoundrel, and Neal for your help in what was really a trivial little matter. PCLinuxOS is such a problem-free distribution, i'll try to keep future questions geared toward more critical issues.