Image acquisition tool box: Blank Preview and Dropping frames continuously

I am trying to capture video using my webcam and the image acquisition toolbox. I have determined my deviceID and name. However, when I try to preview my video object I see a black screen with the status bar saying "Dropped %d frames continuously" where %d is a quickly increasing number. How can I get MATLAB to record?

   %Capture the video frames using the video input function
  %create video input object
  vid = videoinput('winvideo',1 ); %logitech webcam
  %set properties
  set(vid, 'TriggerRepeat',Inf);
  set(vid, 'FramesPerTrigger', Inf);
  set(vid, 'ReturnedColorspace', 'rgb');
  vid.FrameGrabInterval = 5;
  vid_src = getselectedsource(vid);
  set(vid_src,'Tag','motion detection setup');
  preview(vid)

Then it is just black and says it is dropping frames continuously. When I use the device ID for my laptop's built in webcam, it does the exact same thing where it is black screen and dropping frames continuously.

I have followed MATLAB's image acquisition toolbox support through each step (<http://www.mathworks.com/help/imaq/basic-image-acquisition-procedure.html)>, including checking that my webcam is installed and runs on the manufacturers software. It works fine outside of MATLAB.