It just didn't have any affect on Photoshop. I'd reinstalled Lazy Nezumi (keeping the license file) and made sure I was back to all the default settings, but as far as I could tell, the only reason Photoshop was no longer freezing was that I was now completely unable to get Lazy Nezumi to work - it opened, and the UI was fully responsive. It started when I was using the Lazy Nezumi's Scripting > Loops function to draw a coil for a circuit board (I bet Dave can guess what that was for) and went progressively downhill from there.
I was right at the point of emailing Guillaume at Lazy Nezumi today, after spending half an hour, and frequent Photoshop and system restarts, because initially, Lazy Nezumi was causing Photoshop to freeze, and eventually, Lazy Nezumi just wouldn't work at all.
