JWPlayer 4.2

I'm having troubles with the image preview when playing a video. The video goes dead. It seems version or content (?) dependent. The first movie uses all content and player from http://www.jeroenwijering.com. This player is from http://www.jeroenwijering.com/embed/player.swf (4.2.90)
Player
Player
This player is from http://www.jeroenwijering.com download page (4.2.95) located on my webserver. Note the misformed image. You must click twice on the play button.
Player
This player is from http://www.jeroenwijering.com/embed/player.swf (4.2.90)
Player
AttachmentSize
player.swf40.42 KB
swfobject.js_.txt6.72 KB
player_2.swf40.37 KB
video.flv211.21 KB