I'd like to point everyone in the direction of our Grand Theft Auto IV forums at GTAForums.com. There is a specific forum for the PC version, and a Troubleshooting forum which you can refer to if you happen to encounter any problems. There are also forums for gameplay, general discussion, mission help, multiplayer and cheats and tricks. With over 229,000 registered members, and several hundred of those on at one time, you can be assured that your question will be answered quickly.