hi dear ros users, i'm new in ros and have a problem with gazebo on my notebook. its a lenovo with an intel grafic card, which causes rendering errors and crashes by gazebo. i want to write and test a node for the pr2 anyway. is there a possibility to run the simulation without the gui/ rendering? i mean only with standart IO, ROS_INFO and so on? or is there an other way to simulate pr2? thanks, Andriy