Markup Validation Service

For the past few days I have not been able to validate my website at http://www.law.asu.edu.  Each time a 500 read timeout is returned while using the tool.  Other tools such as CSS Validator are working.  Is there a problem with your tool?
 
http://validator.w3.org/check?uri=http%3A%2F%2Fwww.law.asu.edu
 
 
Thanks,
Faraz Khan