Sat down at iTunes today, noticed all my iTunes Matched songs' statuses were "Waiting" as opposed to "Matched" as they've been for months. Trying to update my iTunes Match. Nothin' happening. I've tried turning iTunes Match off and back on, but it appears to be hanging somewhere in Step 1 (of 3). Others reporting same thing on Apple discussion boards. Doesn't appear to be a problem on my end. My ISP is up and running, computer has been rebooted, etc. Anyone here having iTunes Match problems? I'm in the US (East coast). Maybe data center power/heat related?