First, I love this site. I've been using a spreadsheet for the last two years so I'm anxious for the new data I can pull in with this site.
I'm trying to figure out why my MPG rating has been 0.0 for the last couple of months. I imported a lot of data and that seemed to go ok, but now, when I look, even the data that I manually enter is showing blank. I've tried looking through the data for inconsistency, but can't find any. Any advice?