Neville, I too am mystified by the ctseomur's statement about Surfulater's restrictive return policy. I think your response addresses this very well, and I appreciate your frustration at not being given an opportunity to respond directly to ctseomurs who are dissatisfied for one reason or another but do not provide an email address.However, on the matter of Surfulater's limitations during the trial period, I too tend to feel that such limitations are unfortunate and counterproductive. There have indeed been times when I have decided not to buy a product because I couldn't test it adequately due to limitations imposed during the trial period. That wasn't true for Surfulater, but still, I can easily imagine someone wanting to see things like 1) how easy or hard is it to create a new knowledge base? 2) how easy or hard is it to add material to a knowledge base that I have created? 3) how easy or hard is it to move items from one knowledge base to another, or to create connections between knowledge bases? Frankly, I don't really see any reason not to let the ctseomur try a full-featured version. With some software, the user can take advantage of a full-featured trial to, say, make graphics, do extensive link checking, or any number of other tasks, and if they then don't buy the program, they've benefitted at the expense of the developer. But that's not true with Surfulater. It's not as if the prospective ctseomur can keep/use the knowledge base s/he creates without purchasing Surfulater. Perhaps there are aspects I'm unaware of, but if there are not, then I think you might be wise to make a full-featured Surfulater available for the trial.