My plan, first read the forums, then only post a question that I did not find answered, is not that easy.. I not only searched the jp forum, but seeveral others, too and: there is still a mystery, I try to shortly describe it to you.

Active Camera Demo (Shareware) is available via this link
http://secure.simmarket.com/anticyclone-active-camera-2004-(de_557).phtml So I was already happy that I found this link and I freely chose one of the two AC demo-versions (AC demo 2.1 for FS9.1, not for FS9.0), ..should 9.0 or 9.1 make that difference? It apparently does, after download and install "for FS9.1", nothing happens if I press the "X"-key sitting in the Virtual Cockpit (restricted to KSEA, but I was at KSEA, which I checked, too). Next thing, I checked my FS9 version, and it is FS9.1, so the downloaded "AC for FS9.1" should be correct, but repeatedly nothing happens with the "X"-key. Then, several forums later, I found an entry that basically said "the order in which you...