Not to freak anyone out, but I think the general advice is to submit your GRE scores no matter what. Last year my advisor forced me to submit mine (which were a dismal combined 1210) and not a single reviewer even mentioned them (or how terribly low they were). He told me that not submitting them would make the reviewers think that I had abnormally low scores (which, in my opinion, I did) but I suppose it is possible to do worse than a 1210.
On the upside, despite those scores, I still got an HM last year and that was applying as a senior to a field completely different from my undergrad major.