If you link an image with bbcode so that it displays in the post, if the image is bigger than the area allowed for the content, it will cut off the picture and not put in scroll bars or stretch the screen out.

I have attached screen shots.

One of my moderators has downloaded RC1 and messed with it and says that he can fix it by adding this to phpBB3/styles/prosilver/theme/nomal.css:

body {
font-size: 10px;
}

.content {
overflow: auto;
}

I have not tried it.