I love the feature in Windows 7 of pinning programs to the Task Bar, though I'm really confused about some of the behavior:
I pinned Firefox to the task bar. Now, when I launch Firefox, one Firefox icon shows in the back bar, and clicking that icon opens the running Firefox window.
I pinned Eclipse to the task bar. Now, when I click the Eclipse icon, a duplicate icon appears next to the existing Eclipse icon. This results in two Eclipse icons in the task bar; clicking the original opens a new Eclipse instance, and clicking the duplicate one re-opens the running instance.
I prefer situation 1, where only one icon stays on my task bar, and clicking that icon opens the running program. What is causing this happen? How can I fix this?