Sablerose, the Cures window can be opened by clicking any of the various effects areas even if no effect icon is currently shown. If you want it to always show...
1) open eq2ui_mainhud_compass.xml in Notepad
2) insert
Code:
show_window=(MainHUD.Cures)
show_window=(MainHUD.Cures)
between
Code:
show_window=(MainHUD.Compass)
show_window=(MainHUD.Compass)
and "
If for some reason your compass doesn't automatically open the window, toggeling the compass should (I think its Alt + C).