Also be advised if you are running Cubase LE6 or LE5 on a Retina display Macbook, there is a known issue with the resolution.
*Cubase LE5 is not officially supported beyond OSX 10.7 (it is not supported on OSX 10.8 or 10.9)
If you intend to use e.g. Cubase 6 on a Retina display MacBook Pro, it can happen that the graphical user interface (GUI) cannot be operated properly and it might not even be possible to select certain elements at all. There are steps you can take to correct this issue.
Quit the application if it is currently open
In the Finder, choose “Applications” from the “Go menu”
In the applications folder, select the application’s icon and press Command+I to open the information window
Check “Open in Low Resolution” to enable the low resolution mode.
Close the window and double click the application to reopen it.
Now, it should be possible to operate the application properly again.