I know about that, i'm the devil.You're not supposed to do that.
Also, I've taken a look at your sig. You can't specify the size of an image. Remove that "255,255" part, and also also, use a smaller image, because 255x255 is way too large for a sig. IIRC the maximum height for your entire signature can only be 150 pixels.
oh i know about that but my image is too big in general soooo... im lazy