2 webcams or more in one swf

Hi, i am experimenting with the webcam features of flash 8 and have come up against a brickwall as far getting two webcams to input into one swf. I have successfully managed one! and can have as many instances of the video object it imports into on stage…but cant get two. I have read live docs and searched the web, cant find anything flash related that describes how you to get two camera inputs into one swf.

Anyone tried it?