Video Record option

If i try and record video or add video comments it asks for permissison to connect to my webcam (MBP iSight) but doesnt activate the webcam.  Has anyone else had this problem and if so how can this be corrected?

Thanks

The problem is nothing to do with Dolphin, it's the flash settings on the mac.  right click the video window and click settings.  Once there select the webcam icon and change the webcam from the dropdown menu to be USB Video Class Video e'voila you will have video.  Dont forget to select 'Allow' and 'Remember' in the video settings so you dont have to repeat this action.