So i had just finished mission Don Peyote. But after the mission complete, my screen turns to black but i still can hear a vehicle moving, or a pedestrian talking.
Hmm, sounds odd. Do you have any mods installed? Where have you got the game from? Have you tried removing the gta_sa.set file located in the San Andreas User Files folder? Tried re-installing the game? Tried running the game in different compatibility modes?