Scrivener links don’t appear to be working for me. I can create a link to another to another file O.K. (i.e. it renders the linked text blue and underlined), but clicking the linked text doesn’t take you anywhere. I’m using Windows 7 pro and Scriv 1.2.3.0
Clicking the link should load the linked document in the split editor, and this appears to be working for me in 1.2.3 on Win7, so the first thing to check is that you haven’t locked the second editor–that would prevent the link from opening in it. A locked editor will have a red header bar; you can unlock it by deselecting View > Editor > Lock in Place (Ctrl-Shift-L).
Now I feel stupid!
That is exactly the problem.
Why did I not see that?!
Thank you. 
Glad that’s all it was and you’ve got things working again!