Hey guys.
This must be fucking easy for some of you, but i can't fix it :
In fact:
I make my image in Photoshop, cause i dislike Gimp.
I save it, on an empty background, in a psd file.
Then i edit this psd with Gimp. I create a channel (black should make transparency), and save it to bmp.
As you can see, for the hover image, i made a glow effect around my image. The bottom image shows what i got by saving to bmp...
I'm pretty sure this results of a bad channel property, or something like this.
Thank yall for your help !