[kh99]

It's the way html works, not a problem with vb. All white space is combined into one space unless it's in a <pre> tag (and I mean the html tag, not a bbcode like [pre]). You could probably make it the default by editing the postbit template and putting the post message inside <pre> ... </pre> tags, but I'm not sure what the result would look like.

If you just want the ability to use bbcode to preserve spaces for certain text, you could define your own [pre] tag using <pre>{param}</pre> as the replacment.