Since installing C7, Cubase files now open in C7 by default. I have tried the standard method of change this back to 6.5 (Set default program via ‘get info’), but C7 overrides this change. I can’t use C7 as it’s too buggy for me.
I’ve not gotten my version as yet, but, I anticipate that it will be soon. And, I hope that I don’t have nearly as many issues as have been reported here. Sorry my advice did not help. CS.
I don’t use a mac, but on the PC I’ve made notepad my default .cpr app. Then I drag and drop the .cpr file onto either Cb5, Cb6 or Cb7 desktop icons, and that makes me actively decide which version the project needs. And if I accidentally double-click then notepad turns up with a load of junk characters in it, but it takes a lot less time to start up than Cb so I can have another go fairly swiftly (haha, particularly when the clocks change!!). Perhaps this will help, probably not…