I do PC builds as a hobby, it's not my real business. I know him to an extent, not a total stranger. I wanted him to get to open the monitor box, so that he felt a part of the process. He was miffed as he couldn't get to have a proper play with his new toys.
We've spoken since and he doesn't blame me at all. He was just gutted he couldn't have a go with his new stuff. He has a new PC tower crammed with new tech...and no way to use it. I'd be p'd off too if I couldn't use the new PC, but his annoyance wasn't a personal hit on me, more so the situation.
His old monitor is blue VGA cable so doesn't fit into the 4060 card.