The radial to the right of the Web address field brings up the Network Activity Monitor when you click it. The Network Activity Monitor allows you to keep tabs on all of BumperCar's open network connections. You can monitor the speed of connections to tell when they "go bad," and abort any network process if necessary.

The list at the top of the panel shows all of BumperCar's current network processes, organized into an outline. Click the disclosure triangle (4) next to a heading to show more processes. A icon to the right of a process listing indicates that it's transferring data, and a icon indicates a process that has hung. Click on a process listing to show more information about it in the bottom section of the panel:

Address: The URL the process is transferring data to or from, if applicable.

Status: The current status of the process.

Progress: The amount of data transferred, the current transfer speed, and an estimate of how much time remains before the process finishes.

Click this button to abort the selected process.