This works both on Linux and Windows (I don\'t have a Mac computer to test it).
Go to the
data\\options directory (C:\\Program Files\\PlaneShift Crystal Blue\\data\\options on Windows).
Delete your existing
mouse.xml file (if you have one).
Copy
mouse_def.xml to
mouse.xml and then edit the
mouse.xml file with a text editor (WordPad on Windows, Notepad seems to be not working because there are only LineFeed character at the end of lines).
Locate the line with
action=\"MouseLook\" and make the following change:
Make sure that you use upper/lower case characters exactly as shown here.
Mouselook should be now working.