Sidebar goes wandering downtown.

Please try validating your page first.

More often than not template malfunction is due to unclosed mark up etc.

If that still doesn’t help, then check the width of the two columns. Its possible that the main column is taking more space, and that is pushing the sidebar to the bottom instead of displaying it by its side.

As you can see and also telling us, it dissapeared after the second post. This is beceause its filled with blockquote text. Thats why your sidebar cant stand at the point where your css is telling it to stand.

Try to change your content to 420px or maybe less, cant tell exactly.

Thanks