but if you save as 256 color bitmap, you lose color information, and it doesn't look the same. It's weird, because I opened the "main" chipset (after backing it up first), copied a block of pixels 2x2 - pasted them in, and put them in the same spot I copied it from, and saved it. When I tried to import the edited one, I got the error. How does this happen, when the copy is (presumably) exactly the same?