Sharing more than 1 camera from PC

Hello all,
I have recently set up a BigBlueButton (www.bigbluebutton.org), further known as BBB, server running on a VM, the PC on which the
VM is residing runs on Windows 7 Pro 64-bit.
I have 4 webcams, all of them Logitech HD C270.
I am working on a web conference project, with which I require up to 4
webcams to be active at the same time, streaming from 1 PC: For this,
I just opened up 4 seperate tabs on my browser each running the BBB
client (this is all running on the same machine on where the VM
resides).
I have tried a lot of different things (different browsers (Opera, IE,
Firefox...), webcams, OS's even).
When I had it all running directly in Ubuntu 10.04 (Server edition; 64-
bit), with the BBB server running there directly and sharing the cams
through Firefox running in a remote desktop solution (VNC) through
another PC. All 4 cams shared and streamed out successfully, but the
video quality was horrendous. Unfortunately the quality was
unacceptable for me so I switched to Windows, knowing I will get
better quality from the cams there.
When I finished the install of Windows and the VM, set it all up, the
quality was top-notch (as good as you can get with BBB I suppose), but
I could only share out 2 cameras at the same time. I also tried
sharing 4 cams in a laptop running Windows XP Home 32-bit and
successfully managed to share out up to 3 cams at the same time.
I also tried running Adobe Connect (a trial version) on the Win7 PC.
Same issue there, could only share 2 cameras at the same time.
When I try to share a 3rd (or 4th) camera, then I the browser freezes for a while after I click
the Allow button (when it asks me permission to use the webcam/microphone) and then after it
comes back to life it only gives me a blank white image in the webcam window.
Now, all of this is pointing towards a Flash Player issue, so I was wondering if you guys could help me out with this?
Has anyone else tried out a similar setup with sharing lots of webcams at one time from 1 PC?
If so, how did you get it to work?
Weird how Linux allows 4 cams to run simultaneously while in Windows
it seems to be impossible.
Right now I have 2 options: settle for just 2 cams with good quality
or have 4 cams with bad quality.
I'd really like if I had it all running in Windows 7, as it would be
more user-friendly all around in the end.
If you have any further questions, fire away and I'll answer as best
as I can!

Hello Swathorne,
Thanks for using Apple Support Communities.
For more information on this, take a look at this article:
Troubleshooting Home Sharing
http://support.apple.com/kb/ts2972
Best of luck,
Mario

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