ok, i noticed that my CF pictures (screenies) are saved in the damn .BMP file format and that really takes some space .. its not big, but when i want to upload the picture, first i need to convert it and then upload .. and uploading 500 Mb or 36 Mb is a big difference ..
so, is there a way to make or force those pictures to be saved in JPG format ? ... (of course, im talking about the Print Screen button, and not Alt Gr + PS ....)