Hi everybody, I've got problems trying to install ROS C Turtle on Oracle VM Virtual Box, v. 4.0.0; the Virtual Box is installed on Windows XP sp3. I downloaded the appliance (ubuntu_10.04_ros_cturtle) from ROS.org website, but as I load it the VM Manager crashes. Any idea? Could be the image file (.vmdk) corrupted? I got from the website that its size should be 2.5GB, while the actual file size was just 522MB (I downloaded it several times... same result...). Did anyone experience the same problem? Thanks a lot, cheers, Lorenzo