So, obviously, it's not a graphics card issue (I've uninstalled the new update, installed the latest) nor a problem with the program, as it works just fine in its trial state.
As soon as the CC program is running, BANG, crash on startup.
I deleted all files relating to the adobe programs in order to get it to start as a trial, but then, wehn CC cam on, the problem came back. Which means, I can use the full, paid for CC only as a trial.