
"Address Pointer = 0" means that there is no data on the device. In other words, the device was:
You can check the state of the device by looking at the report status view (ActiLife version older than 4.0.0 use Options -> Device Information in the menu bar). The information displayed here can help determine the reason for this error. Here are a few possibilities that may cause the software to display this error:
Here is a view if the device was never initialized (showing both old view and new):


Notice the "Modes" section of the above view. The "Initialized" check box is clear indicating that this device was never initialized. This most likely resulted from a recent firmware upgrade. This view is correct if the device's firmware was recently upgraded. Also notice the "Subject Name" under "General Device Information." It states "Not Initialized" to help indicate the device's current state.
Here is a view of a device that is still in "Delay Mode":


Notice the "Modes" section. The device is initialized, but it is still in delay mode. The device is in this mode because the start date/time has not yet elapsed. (For this example, the device was initialized at 7:00:00 AM on December 29, 2008. Since the device is in this mode, it will not take any data until that start time occurs.