By default, it'll put it in a box to scroll because otherwise, it causes the browser window to scroll horizontally (which is far more annoying, and I know I tend to ignore threads where I have to scroll around just to read some text). Unfortunately, it does not physically check the size of the browser window (yet) in order to determine when it should apply scrolling, and when it shouldn't. However, you can either do what HG suggested, which prevents it from wrapping the image, or you can add the following to your BBCode:
- Code: Select all
- [img options=nowrap,noborder]