When a posting contains multiple pictures, the displayed position of a post (i.e. when using the feature display unread posts of a topic) is incorrect.
this seems to me a HTML feature, as HTML displays the pictures, but needs to know the size of the picture at the time of the first calculation of the page.
If the size of the pictures is unknown, the page contents shifts after the pictures are loaded and displayed accordingly to display the picture correctly.
The solution to the problem would be, to read the size of the picure from the picture itself and give this size of the picture as a parameter to the picture display command.