Okay so... For the fourth time I uninstalled and reinstalled Z3ta+2.
The result is that, after trying as a standalone, it keeps doing it. Good point is that I tried within Harrison Mixbus 32c(Not yet within cubase) and it works good....... That's strange... It was everywhere and now only as a stand alone...
At least, now, I can use it to play and record...
Maybe I should send another mail to Cakewalk to let them know.
Anyway, thanks a BIG lot for your help! It should be fine now!!
Cheers!