I'm not usually one who minds this stuff too much, but just to run the demo, you _must_ register (hope they enjoy my fake data). Then when they send you the link to "activate" your demo, you must display the e-mail as html to see the link (i.e. they don't include the link in the text only part of the message). I'm an old-school "e-mail should be plain text" guy, so this is particularly annoying.