Yep. You have a valid complaint in that all the software in the box doesn't play with Vista. Whether it justifies all the noise you're making is debatable.
Yeah. That happens. I've been involved in a few class action suits against companies that fumble over their advertising claims. Hard disk manufacturers that couldn't resist stating unformatted capacity.
3Com that used the X2 trademark on their modems, only to discover that buyers genuinely expected the modems to be x2 or two times as fast. Several companies, who thought that a change of name justifies not paying any rebates and revising some of their product specs. Also, some medical billing issues that are not exactly relevant here. The bottom line is that the lawyers collected millions by shaking down the companies, while the victims usually received a gift certificate or nominal discount on future purchases.Conversation? Have you ever heard of the world wide web?
Fill out the form and wait your place in line. The FTC is required by law to "investigate" any and all complaints that it receives. The investigation may end up going no further than someone reading your complaint and filling it appropriately. It may also be taken seriously and obtain the attention of the Justice Department. Hard to tell. If Zyxel didn't provide any campaign contributions, I'm sure the threat of an investigation would get their attention. It works for Microsoft.
As for other companies playing the same game, I suppose that's true. Everyone lies, but that's ok because nobody listens.