Thinking I was experiencing an HD failure on my C drive (LONG waits - 3 to 5 minutes after clicking on any file/folder to open it), I ordered a new HD. Hasn't arrived yet. My tunnel vision was focused on my C drive and I totally forgot about my E drive which is a backup HD for all my important files/folders. Today, I clicked on a folder on my E drive to open it up, and it too presented me with a 3 to 5 minute wait before it opened. I'm now thinking MB failure. What do you think?