How to restore "Basics Panel" in Develop Module? I accidently hid it.

I hope someone can help me as I am tearing my hair out over this one! I was using the exposure slider in the basic panel of the Develop Module when my mouse slipped and i clicked on something. My basics panel immediately disappeared/hid.
I have tried everything and clicked on every corner and bar to try and find it with no success.
Can someone help? I had just installed the upgrade to LR5 and all was well until last night.
Thanks
Gail

just found the answer! In all of the modules, both the left and right-hand panels can be configured by the user to hide or show almost all of the individual sections. This is achieved by simply right/ctrl-clicking on the header of any already-showing section (or empty space) in a specific panel, whereupon the option to select/deselect all the sections of that panel will be presented. In this screenshot of the right-hand panel in the Develop Module