On Vista 64bit, when opening the Construct: Insert New Object window, there are no objects in the secondary tabs that are supposed to filter the pool of available objects. Objects appear in the "All" tab, but nothing appears in the "Audio", "Controls", etc, tabs.
This happens with all versions of Construct that I tried, upwards from 0.98.
The Insert New Object window behaves correctly on a computer with Windows XP SP2.
screen capture of "Audio" tab being empty
I'm not sure what to do about this, as it seems to work on every other OS. I'll ponder it.