noticed that all my video files where playing back with "snow" or noise on them, this past week. (all file types, all apps, except *.mov) I'd just got ffdshow working with TT (even on Pal disks, by venturing into my registry). Didn't really notice much difference and so when I worked out that ffdshow was my most recent significant change I uninstalled it and low and behold video playback was fine again. Why's that then? Is there a way round it?