I've been checking your page everyday for the last days, but, as I mentioned in a previous post, the question of the day is more like the question of the week since the changes.
I had this sympton from where I work a while back, and it turned out to be a caching issue, i.e. the proxy thought the page had not changed. It looks good for me today. Note that it gives the date for the day the question was generated.
It may be a case of hitting the shift key as you click refresh (perhaps alt or control?). I put in a no-cache header that ought to ensure that you get the up to date value, plus a proxy should note that the page has changed, but there are some odd cache settings around.