*Zero* full posts before grid? Pure grid?

Hi all,

I apparently can’t set “Full posts before grid” to zero in the settings — well, I *can*, but it still defaults to one. Is there any way to just have pure grid with no full posts off the top?

http://authnerd.shep.ca is the site, and it’s ugly as pants kind of intentionally right now — I want to get this grid thing licked before I start lookin’ at the pretties.