I just sent Chimera an email regarding a window that opened up regarding expiry of my registration.

I was able to fetch a PDB file, 1GPA

But the menu actions do not appear to work as they used to. I try to hide the selected ribbon, and instead of  hiding it the color changes. Eventually with some persistence I can hide one of the chains.

Do I have to reregister?

Thank you

Arthur G. Szabo