I have HP Pavilion with new HP harddrive and HP Win7 OS. Got new motherboard and CPU from newegg after HP said it would work. Well, it doesn't work. Now HP is saying the motherboard is not tattooed to interface with harddrive. Arghhh... They have no way to assist either, so now I have to buy a new retail copy of OS and leave HP in the dust. Before I do that, any thoughts, suggestions, ideas that will help me tattoo the motherboard or make the 2 devices compatible? Thank you!