You're very persuasive, Michael, and I appreciate that! I will have to find a way to get this running. I hope the editor won't take tons of MB's, as my online machine is nearly choked. So installing on an external HD from that machine may be the best indeed, then copy the lot to the fast machine. As long as dependencies aren't broken up then... I'm always a bit reluctant to install big new stuff on a good working machine.
Interesting and thanks for all your input, guys!