Sprite & Cam Fog

Hey, I was wondering; Do you guys know a solution to avoid the problem with fog and sprite.
My cam fog is blue, then we can see the sprite image borders, the sprite is on a black bg and i dont want to change this color.
current format: BMP
take a look at the picture:

EntityFx sprite,8 I think. Check the flags and disable fogging on sprites.

Disable fog, and enable auto-fading that matches the camera fog range.

Thx you guys ! :)

It's working !