Trouble switching cpanel themes


Dec 16, 2006
Missoula, MT
I am relatively new to cpanel... though kind of had a handle on everything up until I found the place where I could switch themes. I switched from x to controller... and now I am completely lost, and I don't see any place inside the new theme to switch back.
So... I came here, registered an account, and have spent some time reading topics and searching for an anser. I also looked over the newbie guide, and was unable to find an answer to my problem.
Will someone be so kind as to tell me how I can switch back to the default x theme? I would really appreciate it.