This is a Microsoft issue; This is a permissions issue on the Windows 2008 Server Box your user does not have the correct permissions as outlined below. Once you correct, this issue and can monitor the monitors through Perfmon, you will be able to monitor through LoadRunner. Below is information from Microsoft with links attached.

Applies To: Windows 7, Windows Server 2008 R2, Windows Vista
Performance Monitor is a simple yet powerful visualization tool for viewing performance data, both in real time and from log files. With it, you can examine performance data in a graph, histogram, or report.
Membership in the local **Performance Log Users** group, or equivalent, is the minimum required to complete this procedure.

**To start Performance Monitor**

1. Click **Start**, click in the **Start Search** box, type **perfmon**, and press **ENTER**.
2. In the navigation tree, expand **Monitoring Tools**, and then click **Performance Monitor**.
You can also use Performance Monitor to view real-time performance data on a remote computer.

Membership in the target computer's **Performance Log Users** group, or equivalent, is the minimum required to complete this procedure.

**To connect to a remote computer with Performance Monitor**

1. Start **Performance Monitor**.
2. In the navigation tree, right-click **Reliability and Performance**, and then click **Connect to another computer**.
3. In the **Select Computer** dialog box, type the name of the computer you want to monitor, or click **Browse** to select it from a list.
4. Click **OK**.

**Additional considerations**

To view performance counters from a remote computer, the Performance Logs and Alerts firewall exception must be enabled on the remote computer. In addition, members of the Performance Log Users group must also be members of the Event Log Readers group on the remote computer.

**To start Windows Reliability and Performance Monitor on**

1. Click **Start**, right-click **Computer**, and click **Manage**.

2. In the Microsoft Management Console navigation tree, click **Reliability and Performance**.

Please see the following link: http://technet.microsoft.com/en-us/library/cc771692(v=ws.10).aspx