Need Help Starting computer ( replaced motherboard after lightning storm)

I replaced the mother board and now I have a computer that turns on and that is about it.  The message when I turn on the computer is :  STIKE F1 TO REBOOT F2 FOR SETUP UTILITY.  Then if I hit F1 it shows me the same message.  If I hit F2 it gives me the specs for the computer and below it there are a list of options Drive configuration, Boot sequence, etc....  In total about 11 other items beside those items it says .  Anyways please help I spent $700+ on this computer, it fried less than one month after warranty.  Dell told me what was wrong w/ it, but I had to purchase additional equipment.  Spent $200 on a new motherboard and installation, and now I still can't use it.  PLEASE HELP ANYBODY!!!!!!