[LAD] Possible gpl validation

Hi all For some time now there is a website witch offer a USB stick, a slackware based Audio bundle full with GPL'd software. I have some discussions with the provider, because he wouldn't make the source available to his (possible) users, and he wouldn't make them aware that they have the right to receive the source. I have contacted license-violation(a)gpl-violations.org and get a fast response first. On my question if they see a GPL validation they wrote after visit the site : Well, I let them know that I've try it without success. Unfortunately I didn't hear any more from them for more the 2 weaks. Is anyone here on the list knowing what is to do now, what could we do to make the provider aware that he must offer the source in the same way then the binary's, and that he must make clear that users have the right to receive the source. I guess most of the Copyright-holders from the used applications are members of this list. At least, I still believe that no one how buy this stick, ever have a interest in the source, so it is just a mater of respect for the GPL, but, it's a shame for me to see the GPL validate in such a way and get on top of that a response from the provider in a "Fuck off" attitude. To bad that I need to provide the link to this crap here, so that you could have a look at it: http://www.getstudio1337.com/ here is the discussion about the issue: http://www.linuxmusicians.com/viewtopic.php?f=4&t=7928 any Ideas what to do ? Or I'm completely wrong in my understand of the GPL? greets hermann