I'm new here, and I'm very sorry if this topic doesn't belong here or is identical to another topic. I take AP Computer Science A and my computer in the classroom doesn't run Eclipse, or at least it doesn't now. Usually, it runs fine. But now, when I double click the desktop icon, it shows the loading screen and as the green bar fills up, the window disappears and nothing happens, when it is supposed to run Eclipse. What should i do and what is the problem?