First, let me say I LOVE AutoViewer! (and SimpleViewer!).
Recently I output an AV gallery on a Windows XP PC using Picasa (after downloading the SV and AV templates in the package at futureofmemories.com). AV output worked fine in IE7, but when I tried to use Firefox page generated a message that I needed to upgrade Flash. Tried to do so. Hung computer. Tried to upgrade Flash from IE. Seemed to work, but no change when I tried to see the AV page in Firefox.
Tried to load the page on my Mac. There neither Safari, Firefox or Opera worked--got the Flash upgrade required message in each case.
Also tried to load the page using Vista (running on my Mac). Same thing---works in IE, nothing else.
I downloaded AV freshly from the Airtight site, thinking maybe the script was outdated (per Felix above with regard to SV). Unfortunately, no change.
Per the post above, removing the flash detect script does let the page run, which solves my problem for everyone except those who, ah, need flash.
Incidentally, no problems under XP OS X or Vista loading pages created with AV long ago.