Today Rockstar Games got in touch with us, and they would like to assure fans that they are working to help solve the issues with GTA IV PC as quickly as possible. They advise anyone that is encountering difficulties to contact their local technical support helpline for advice and recommendations. These telephone numbers can be found in the game’s manual. You can also refer to Rockstar's support site, which provides regularly updated technical information and solutions to common problems, including a complete list of error codes, and some advice on how to use the graphics settings.