Enrico and all,
Is anyone else having trouble with preview when editing pages? Sometimes (and I can't determine when) when asking for a preview the sidebar overwrites the edit window and disables the save button. So I have had to do recent changes by saving and seeing what it looks like (sorry to spam you Enrico and anyone else subscribed for notifications).
This problem happens on playground as well as the build menu page but I don't think as often (document size?).
Using firefox 3.6.17.
Cheers Lex