My hard disc crashed and I have reinstalled and run update for InDesign CS5. When I try to open old files, they won't open because it says Plugins are not available. When I look in Adobe Extensions, the Adobe Plugins that are said not to be available are locked but listed as being available. When I follow directions to download extensions I am given no choice for CS5 only 6 and CC. What do I do to activate the extensions?
A screenshot of the error message would be helpful.