title: How can I represent a loop in a sequence diagram in Microsoft Visio 2007?
body: <p>I am drawing a sequence diagram in Microsoft Visio 2007 and I want come message calls to be represented in a loop.But I can not find any shape in the shapes provided.How can I represent a loop in visio??
  Need emergency help....please..........and shaped available to download and use??
  Thanks </p>