Thank you for your response and sorry for the delay in my response. The answer to all three questions is yes. When I turn on the power, the screen turns blue and the letter H appears in the bottom left corner, also a small red and a small green light appear in the corner of the pi. After about 10 seconds the screen turns black and nothing else happens, although the blue lights on the powers source remain on indicating that it has not shut off. From the very little I know about this sort of thing, it seems like it is just not finding anything to read on the SD card. Please advise me as how to proceed.
Thank you very much for your help.