The Sync to Portable/Audio Device button normally shows an icon. When I click the button, it goes blank (shows just a flat mid-grey) for the duration of the sync operation. Screen shot available.
This on the unskinned version, note.
EDIT(TC): Tracked at http://www.ventismedia.com/mantis/view.php?id=6927
1159 active version of Sync button icon is blank. [6927]
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