I downloaded Lightbox for a website that I'm working on, and found a way to insert a JWPlayer video via Lightbox's iFrame feature and a custom PHP script. The setup works quite well, but I'm having a lot of trouble with figuring out how to get rid of the excess whitespace that's between the bottom of the iFrame area and the close button on the bottom right. I checked if this is a feature in Drupal's admin section and unless I overlooked it, it's not there. I'm pretty handy with code, but there's quite a few files for the module and I don't know where to look. If you want to see a demonstration of what I'm talking about, please go to the website I'm working on and click on the picture to the right to activate the Lightbox:

http://www.tsihd.com