The strangest thing happened today..
Restored from backup, checked, everything worked as expected. I subsequently ran live edit, made a couple of changes and then attempted to view the site, only to get a blank screen.
I haven't been able to load the site ever since, even after having re-restored using the exact same backup that I used in the first place.
I have turned on error reporting, nothing reported.
Could you tell me what may have caused this, so that I can at least make sure that it won't happen again?