Saving particular page content causes error 500

Hi, I’m getting an error 500 when trying to save a page with a particular text content. I don’t know what is special about this content, but I’ve posted in in pastebin here:
http://pastebin.com/VuZY5emx
To see the problem, just add a new page from wp admin give it a title (Test, for example) and then paste the text from the pastebin page into the edit box and try to publish the page.
I’ve minimized my setup to just using a brand new installation of WP 3.2.1 with either the 2010 or 2011 theme with all settings at default and no plugins. I’ve played around with this text and found that I can delete the last paragraph and it works fine. Can someone try to reproduce this problem on their system and find out the root cause?
Thanks,
Doug