I am also able to reproduce it on a Natty i386 system (also with the command "yelp ghelp:user-guide"). That system is a VMware Workstation virtual machine with the 2.2 GHz Intel Core 2 Duo machine (running Maverick amd64) as the host system. The Natty guest system runs yelp 2.30.2-0ubuntu1. The VMware Workstation version (in case it's relevant for benchmarking or other purposes) is 7.1.3 build-324285.
I neglected to mention it before, but the Maverick amd64 system runs yelp 2.30.1-0ubuntu1.
I am also able to reproduce it on a Natty i386 system (also with the command "yelp ghelp:user-guide"). That system is a VMware Workstation virtual machine with the 2.2 GHz Intel Core 2 Duo machine (running Maverick amd64) as the host system. The Natty guest system runs yelp 2.30.2-0ubuntu1. The VMware Workstation version (in case it's relevant for benchmarking or other purposes) is 7.1.3 build-324285.
I neglected to mention it before, but the Maverick amd64 system runs yelp 2.30.1-0ubuntu1.