Thanks for all the comments. Lots to think about as well as making interesting reading.
The EULA contains 2240 words and five hotlinks. I understand the purpose is to ward off predatory legal challenges, but it doesn't help the user. Does anyone read and, critically, understand such documents? I used to write articles on the interpretation of statutes yet I find much of Cyberlink's efforts bemusing. Writing it in English, even the American kind, would be a great aid. Legalese is jargon. There should be a plain English version, one without seemingly ranDOm capital letters, for the rest of us. Grammar is vital for clear communication.
One paragraph tells us:
License Types:
**INDIVIDUAL CONSUMER
If you acquire the SOFTWARE under an individual license it is for your own use under the general terms above.
Putting it on two computers, both wholly owned by me, and the software being used only by me, would comply with that requirement.
But elsewhere I find that this statement might well be imprecise.
I find it irritating, although this is not, of course, unique to Cyberlink, when I've bought something that has such restrictive conditions for use. Often, when such restrictions are challenged, the courts reject them, but the likes of me (some customers expect £40 per 1000 words), daliance in the civil courts is a luxury that is denied. I can understand the desire to protect a product, but to demand buying an item twice is milking it a bit. You would not buy a car that would only take you south and east. If you wanted to travel north or west and the company said you'd have to buy another car, I could, in all probability, predict your response.
I probably will stay with my present set-up of PD on desktop and Resolve on laptop, despite the latter being a bit of a strain on the laptop's CPU, but I might not be happy about it. It also puts me off upgrading to an extent.
A small point; it is called an end user licencence agreement. I think the final word is a misdirection. It is a 'take it or leave it' situation. There's no input from the end user. Directive would be much more accurate.
I've had my whinge. Thanks to everyone who took the trouble to reply. The community in PD is one of its biggest draws.
I love aphorisms: they give all the appearance of intelligence without any of that difficult thinking.