Gallery description and other data not saved

I’ve just updated to NextGEN 1.2 because I found that with 1.0 it wasn’t saving – or rather it stripped out – language tags and second language data in image descritions and titles.

I now find that this problem is cured (glory be !) but that my Gallery description and other data (like gallery thumbnail) does not save.

On installation of 1.2, I got a message about updating database for 1.2 – could this be the problem ?