This isn't exactly the same magnitude as last year's Z2K scare, but it's still an all-around bummer for all you Zune nuts. According to a spate of complaints posted to the Zune.net forums as of late, certain Zune HD units are not syncing their playcounts properly with the user's PC and Zune Social accounts. To be a little more specific, it seems that if you let a song play through on the device it will not be counted as played -- but if you skip to another tune before it has a chance to complete (but after 20 seconds or so), the play will be counted. A real pain, right? Of course, this is not only bad news for obsessive list keepers, but for Zune Social fans as well: if your listening habits aren't being properly tab