Immediately after the launch, reports about the new machine's technical glitches started coming out. Some reported the Xbox 360 crashing with errors, some reported the hard drive does not respond in certain situations while others report error messages during various games or unusually fast overheating. Due to the issues caused by overheating of the first consoles, Microsoft extended the Xbox 360 warranty by 3 years, which cost more than 1 billion US dollars. The manual contains warnings about not placing the Xbox 360 on soft surfaces or in enclosed spaces to avoid heating problems. Microsoft claims that these problems are to be expected on a large scale release for a console and the number of reports versus the number of consoles released was minimal. Microsoft stated that they would look into the reports and offered assistance reachable by phone.