I've seen them too. I think it is a timeout, but I'm not 100% sure Sent from my Windows® phone. build 21215.5.0.0 -----Original Message----- From: Antonio Cangiano <acan...@gmail.com> Sent: Sunday, August 02, 2009 3:53 AM To: ruby-bench...@googlegroups.com <ruby-bench...@googlegroups.com> Subject: [RBS] nil within reports