In the very top of the media window (the window in which you write the credits) there is a place where “Lenght” is written, and next to it there is a box with a determined time. Try to increase that time, but also notice that if you increase too much you may need to make the credits in the TIMELINE longer.
Hope it helped,
Caio
P.S.: Thanks for asking this, becouse i opened my Vegas and i was looking where the time thing was and i finally found the Protiper! lol… =D
