What do I do about a card marker?

[L0QTiS]

If the marks are on an unusual number of aces or face cards, then I'd say it's intentional. I've found that my card's "marks" seem fairly well spread out over the deck.

I really think you have to announce this. It's affecting your enjoyment of your own game and even though I'm sure catching the culprit (if this was of malicious intent) would be satisfying, you're going to drive yourself nuts trying to "discover" who it is.

Pfap, take a pic if you can and post it here.