To Anyone who can help:

I recently downloaded ChimeraX after many years of using Chimera. I keep getting the following warning message:

Registration file '/Users/carol/Library/Application Support/ChimeraX/registration' has expired

I assume this means I should re-register, but I can’t find any mechanism to do that. Sorry for my stupidity, but I do want to be using the software legitimately.

Please instruct.

Thanks,
Carol

Carol A. Rouzer, Ph.D., M.D.
Senior Editor/Writer
A.B. Hancock Memorial Laboratory for Cancer Research
Basic Sciences, School of Medicine
Vanderbilt University 
Nashville, TN 37232-0146
c.rouzer@vanderbilt.edu