Ati HD5450 vga screen problem

[bas123]

Hello,

 

Thanks to this forum, i got my hackintosh fully working except one thing, dual monitor.

It works, but when I connect a vga display i can't get the picture in the right position.

My system is a dell 1564

Intel Core i5 2.26 GHz

Ati mobility HD 5450 1024mb (68e0)

4gb ram

 

I attached a picture of my problem

 

Can someone help me? I already tried every framebuffer

 

Thank you