Anyone get the Random block to work with MDPro?

I tried the one you cna download here and it worked *once*, then gave me an error on subsequent refreshes of the page. Odd. I also tried the 0.41 gallery_random pnblock, but it won't let my index page load *at all*.

Http://www.shiningideas.net/index.php (I'm building, so it will be fluctuating!)

any help would be appreciated!

Jason