Hi, i also use xfrog plants in vue 4 and 5 resp. by checking the materials you will easily find that the leaf/needle texture is NOT using the embedded alpha of the (standard or not) color texture! For the transparency it points to a separate texture (something like texturename_a.tif) due to getting rid of problems related to non-standard color bitmaps. Anyway, you could check the options in the transparency section of the leaf-material, if they are set correctly...