Special C

I just got this game and the controls seems super erratic. Sometimes when I click a card I get an option to bury, discard etc in little flags on the right. Other times it randomly starts showing the card real large in portrait view and I have to start dragging it. Sometimes I'll drag a card and it just moves around the screen and won't do anything. It just seems like the game randomly changes the way you interact with the screen. Am I doing something wrong?