I also just tried changing every option on the leafskin in the model editor, and none of the engine previews showed any improvement with this transparency problem. I even selected all and "flipped", and that didn't seem to make much difference either, but at this point I'm just flailing around in the dark.
Mayeb there's something wrong with my GS version? I downloaded the latest (public beta) from conitec directly... Does anyone have a tga-based model, tree or otherwise, that is guaranteed to work that I could try?
And is there any other way to get good transparency/alpha for trees like I'm trying to do, but without using tga? Maybe sme kind of shader effect working on a pcx file or something? Heeeeellllllppppppp mmmeeeeeeeeeeee..... heh
thanks