Hello, Tried to submit a ticket for mjpeg_server (http://ros.org/wiki/remote_lab) by clicking links at the bottom of the page under Report a Bug … but I get "Environment Not Found". So I will post the patch here: This patch updates the package to cv_bridge and fixes a bunch warning about signed/unsigned comparisons. Also it greatly improved the performance for me. Let me know if I should instead post the patch to answers.ros.org? Enjoy! Kevin