I wasn't aware you could do this. Locking it by default seems like it would make more sense.

Also while I've got you, two issues I've noticed.

1. When I click "All Stories" to refresh my feeds it defaults to listing everything, even though I have it set so I only view one item at a time. As soon as I click the button/arrow to go to the next unread item it shows the first item as it should and everything works fine after that.

2. I seem to run out of items after I've viewed ~20ish and I have to click "All Stories" again to fetch a new bunch

I'm using the dev site if that matters (Issues happen on both sites though). So far these are the only things annoying me and otherwise newsblur is pretty good.