It's not that we've not seen it before, it's the fact that windows bitmaps DO NOT DISPLAY on a lot of folk's browsers.
Please convert your bitmap images to a web-friendly format before posting.
Not only that, but windows bitmap images are HUGE.
geezer.jpg = 52kb
geezer.bmp = 658kb
What difference does 606kb make in the above image? Not a damned bit.