Problem with FF VII

[Xardrick]

I am playing FF VII for quiet time now, and I reached the point where I got "The Key of Ancient" and when Bugenhagen insert it in a music box, water started to falling, then i must go into this waterfall. When I go in I got a black screen :S that for a sec i see a picture and again black screen.
Can Anyone help me with this??

[Levian]

Sounds like there's something wrong with your game. One way to get around this is to upload your save file to the net and ask someone to get past that point for you, save the game, and send the save file back to you.

[Karifean]

You mustn't enter the screen before Bugenhagen does, or the game will react violently...

[Christmas]

Are you playing it on emulator?