Hi, the past week my iMac has been having lots of issues and now won't boot up at all. It started off freezing with some vertical lines on the screen. I restarted and it was fine. Then a few days later it froze up again with vertical lines then the screen went white. Restarted, then it would just go to the white screen as soon as I logged in. Finally the other day I was watching a youtube video and it went white again. Restarted, and it would not get passed the apple loading screen.. turned it off and tried again this morning and now it is just a black screen, no apple screen, no start up chime. Does this sound like it will be covered by the recall Apple announced a little while back? Thanks.