I have a link that opens a Thickbox...
<a href="page.php?tag=lists-element&keepThis=true&TB_iframe=true&height=450&width=500">
Everything works with this except when the Thickbox opens up the title is displayed twice:
Any ideas as to why this is happening or how it can be fixed?
The only thing that makes sense to me is that either something on the "page.php" opens another Thickbox, or that the "page.php" itself contains the extra title.
Since you're not doing anything out of the ordinary with the Thickbox class, I doubt that it is a bug in the actual script.
To debug this, I would first remove the "tag=lists-element" from the query string of the URL, as I don't think that is a Thickbox option (correct me if I'm wrong). That way you can strip it down to the basics and test from there.