Heeelp! I have just downloaded the last version of Rhino for Mac.
I did not save a copy of my current Rhinoceros application, I just overwrote it.
The program is not working well.
I wanted to start modeling a box, when I pick this option and try to draw it, nothing happens, I am not even able to press the Cancel Button… why?
Is there a solution to this problem?
I am having the same problems. I was an idiot and replaced the old version when I updated. 3/4 through a project for school and it won’t even do a simple trim!!!
Are you using OS 10.8?
If so, have a look at the link down here. This might be a solution for you.
Solution might be here
I updated my Mac to Maverick (10.9.1) and also downloaded the latest Rhino Version (2014 01 29).
I do not have problems any more. I don’t know if it works due to Maverick or Rhino Version or both… but everything works correctly!
Anyway, thank you very much Hilko for your interest and your advice 
Hope Michaela has solved her problem already!
I Updated to Mavericks too and a lot better I must say!