super smash bros brawl problem

[alvarofer0020]

my problem is that good when I put my super smash bros brawl brother started well but I finished the story mode first battle mario vs kirby and then the screen goes black Algier ayudemeeeee

Features of my pc
O.S Window Vista Ultimate x64 bit
nvidia geforce 9600 gt
4 gb ram

and use that version of dolphin was

the 2745 svn ayudaaaaaaaaa