FLstudio 11 but finally it worked in the producer edt.
But now every five minutes the message appears " this is a demo version " .
When I start up(again) FLstudio producer starts without any problems...untill 5 - 10 minutes ...
Dunno if anyone noticed but the note colors shown in playlist for no apearent reason has changed. After thinking what i did, only thing i came up is - i installed FLStudio 12 Alpha ...