I have a Dell Inspiron N5030 laptop. When I hit the button to power on, it shows the Dell logo, a half completed progress bar & F2 Setup/F12 Boot Option in the lower right corner. Then the screen goes black for 2 seconds & it's does the same thing again & continues this cycle endlessly until I power off. It won't load the drive, doesn't indicate an error (though there obviously is one) nor do I get the blue screen. Help.