Shadow Effects

Hi,This question has probably been asked quite a few times, I did a search but got no results. My question is this, when I use the "drop shadow" feature in "Paint Shop Pro", you have to set the colors to 16 million (24 bit). The results are fantastic. When you load this new panel in FS9, the colors look strange, not the same effect as it looks like in the editor. If I reduce the amount of colors in "Paint Shop Pro", the results are not good at all. How do I get this shadow effect to look correct in the flight sim?Thanks,Tom :)