Hello, I recently purchased a new 750gig seta HD and installed it. My computer recognizes it in bios and also when i right click my c drive and go to properties, I can see the new drive in there. But it is not showing up in "my computer" or when I try to run it through cmd. I am sure there is just a simple thing I am missing.... Do i have to install it?? I was under the impression it was plug and play. Thanks for your input!