? you do know how ck set up rock lib to save that setting? it's prolly totally borked in 3.0 ; looking back over where those setting "should" be saved (being that i use a rock addon) they are not there. Try installing LibRock-1.0
To get to the addon preferences if you have fubar 3.0 right click on your fubar bar to open its preferences, click the drop down menu in the upper left corner of the window, then select addon preferences with the screw icon.