Sprite Color

[clapperboy]

Hello,
I am entering the world of sprites and I am having a problem with the image displayed.
The image file represents Bubbles and is in tif format. The image file is plugged in a lambert shader both in color and transparency. I assigned the shader to the particles...but...

my sprites display the image file gray-ish. Its seems to be multiply by a mid-gray somehow? (i.e. White are now gray, but black are black).
If I assigned my lambert to a polyplane. the image is displayed properly. I am guessing it is something in my particle or emitter?
This is all in hardware rendering at the moment.

Anyone knows what it is?

Thanks

[gmask]

did you set the diffuse value to 1?

[clapperboy]

Thanks for your input,
the diffuse value was at 0.8.
but setting at 1 didnt solve the issue since the material displays correctly on meshes but not on the sprites.

Ive added a color attribute on the particle, and set them to white. It has multiplied my texture correctly.
Im just wondering if there is something else I might have missed.