"Floating gunsight pippers have been added. A new default gunsite has been added as well. If you are using a custom gunsight, the .bmp file needs to have a one pixel border of the transparent color or it will tile. Gunsight .bmp files must be 32x32, 64x64, 128x128, or 256x256 pixels. If an invalid size is used, the gunsight will appear solid white."
hope that helps
ps. wot's a pipper???