New
#11
I missed it,
It seems odd that after you shutdown normally, and then have this problem when you go to start up the next day.
Almost seems like a hardware problem. Bad Ram could cause a machine to a hard/no start condition.
I would try removing, and then re-setting the ram sticks, just pull them out, and put them right back in where they came out of.
Has the inside of the case ever been cleaned?