[Plugin: Twitter Tools] Tweets offset by about 1 day

I’m running the Twitter Tools plugin, and have been for a while now without problems. At first it worked fine (probably on an older version), but now that I’ve upgraded it to the most recent release it’s been posting my digest a day late. For instance, tweets that I did yesterday (9.19.08) are in a scheduled post to be published tonight at 11:59pm, and if everything works the way that it has been, anything that I send to twitter today will be posted at the same time tomorrow.

What can I do to get anything that I do on Twitter today to get posted at midnight tonight?