Whenever I try to save a flash .flv file using FLV1 (lavc) for video and MP3 (lame) for audio, it crashes. In the Gtk version I get a pop up that says "Crash" "Press OK to build crash info", then it shuts down. In the Qt4 version it just closes. I am using Avidemux 2.5.1 (r5249) on Windows XP.