I would say that this is not because of your video card, after 16.7 million colors, I dont't think a few more billion is going 2 make a difference. Also this is not worth the file size. If you get a video card, get a PNY Verto 4200 like I have because it works good 4 games as well as whatever. I have no idea about your problems except perhaps that airbrush, paint brush is supposed 2 do this i thought in varying degrees according 2 your oppacity settings and time of application, just like real paint. If you want 2 just fill something with a foreground color, use the keystroke combo of alt&backspace.