Mark Nord: here's what I found at "settings>about":
PRS+ 2.1x rev.99; Analogus rev.104; 2012.06.15
Author: Micheil Sukhiashvili aka Kartu (...) Mark Nord, and others. Zork-Edition: Additional functions from Analogus includ work from Terisa
Here's the link to the thread that led to my downloading PRS+: https://www.mobileread.com/forums/sho...geraw&page=246
Interestingly, the zoom is now working again (didn't restarted it or done anything)...can you give me a quick work of advice please?