The question http://superuser.com/questions/383102/google-chrome-pinned-to-windows-7-taskbar-not-opening-under-pinned-icon/427823#427823 was closed on Sept 3 as being a duplicate to http://superuser.com/questions/214400/some-taskbar-pinned-icons-are-duplicated-when-an-instance-of-the-application-is/519650. I don't think this is correct, as the "original" question asked about Windows 7 applications in general, while the so-called "dupe" specifically asks about Google Chrome, and has Chrome-specific solutions - and is in fact a very helpful question for people searching for this issue. I've flagged the question, but I wanted to bring it up here also.