title: Team tab is removed every time Excel 2010 is opened
body: <p>Using <strong>Excel 2010</strong> and <strong>TFS 2010</strong>. I've been using the "Team" tab in Excel for quite a while now (very useful!). Today, the "Refresh" took ages and I couldn't use Excel so I killed the process in Task Manager. I reopened Excel and the Team tab was missing. I added it back in <strong>File</strong> > <strong>Options</strong> > <strong>Add Ins</strong> > <strong>Manage COM Add Ins</strong> > Go > selected the <strong>Team Foundation Add-In</strong>  and the <strong>Team</strong> tab is back. I can create/view lists etc. However, when I close and reopen Excel the <strong>Team</strong> tab is missing again. </p>
  
  <p>How do I make the <strong>Team</strong> tab stay on the ribbon bar even when closing &amp; reopening Excel?</p>