Hi! So this afternoon I was downloading an update for my iTunes, and since I have very low virtual memory left on my computer it could not complete. So I tried to cancel it, and then it froze. I was unfortunatly impatient and just turned my computer off due to it freezing. When I went to go turn it back on a few hours later the "Dell" loading screen would show up then dissapear leaving me only with a black/dark blue screen. Help please!!