Try clearing the CMOS by removing the motherboard battery. When it is out, hit the on button a time or two. Be sure the computer is unplugged and you are grounded when you get in that case. Also, don't try the computer until you have put the battery back in. Let us know if this helps.
I sure hope the lightening didn't fry something like your power supply.
I sure hope the lightening didn't fry something like your power supply.