To take snap shots every 30 to 60 seconds:
1. Under Automatically Alert Me, select the "Periodically after every" option.
2. Specify the period in Hours, Minutes and Seconds.
3. Make sure that the Take Snap alert is selected from under Which Alerts do you want to run?
4. Click Configure to change the settings of the Take Snap alert.
5. Change the desired settings and click OK.
6. Click the "Start Monitoring with Alerts" button to let WebCam Monitor take snaps periodically.