Hi, I've just started using film. I shot roll the night - mostly in a dark-ish room with a new flash. I just picked it up from bigW (like a walmart) they developed it and scanned it (no prints) and every photo seems like its dusty or snowy. Is it noise from the scanner? (sorry my friends and i were at a karaoke bar so it's just a little crop from one of the images) It's Kodak Gold 400, it might be expired a little but I shot a roll from the same box a few weeks back and didn't have these problems. Can anyone tell me what's causing it?