Slingplayer for Google TV Compatibility with Slingbox PRO HD

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    I  am trying to use Slingplayer for Google TV on the Logitech Revue  companion box and have downloaded the App to access Slingbox. The  receiver is a Slingbox PRO HD but says it is "incomptabile" when after  logging on. The Slingbox software version is 1.4.60 and updates  automatically. Is it a firmware issue that preventing access? If so,  what do I need to do and how do I update the firmware on the Slingbox so  it is compatible? Thanks!