My friend John Huntington of Controlgeek.net just posted a video of Dell computer's serious, and I mean serious, audio grounding issue.
Yet another Dell Laptop Audio Grounding Problem from John Huntington on Vime
See John's post at Controlgeek.net for more info. And by the way, if you are not reading John's Blog on a regualr basis you are sorely missing out. Go now and subscribe to him.
Ha! it appears that Dell Computer's news aggregation tool added my post to their site!
Updated: 1/28/12
I just found out that the above post was in preparation for a more expansive article on whether the vinyl graphics (which many live show now use to hide speakers and advertise for the sponsor) have any adverse effect on the sound.
You can see that post here: http://www.controlgeek.net/blog/2012/1/27/do-graphic-vinyl-banners-affect-sound-transmission.html



