I connected my iPad to my PC using the USB cable. A menu popped up asking what I wanted to do and an option to do this by default any time it's connected. Instead of choosing anything, I just clicked on the X in the top, right corner to close it out. Now the iTunes program still appears in my task bar, but when I click on it, nothing happens. I'm afraid to disconnect the iPad or force close iTunes because I assume it must be doing something like syncing, but I have no real way to confirm that it's syncing. Nothing on my PC or iPad indicates it's syncing anything. It's been going on now for about 10-15 minutes. Can someone please advise me on what I should do?