DVCS plugin configured correctly for github, says "no repositories"

Question

It looks like JIRA's DVCS plugin is talking to my github account, in that I followed all the setup directions, and it appears in my JIRA list of DVCS accounts.  The link correctly takes me to github.  Autolink and Smart Enable are checked.  However, although I have ~25 repositories, the Manage DVCS Accounts page shows that the account has "no repositories."

I've searched around for this phrase on the Atlassian site and generally with Google, so far to no avail.  Anyone know how to troubleshoot this?

Mark Maxham · Accepted Answer

Turned out that my github account was called X____, but I fed x_____ to the DVCS config.  Github didn't care about case, so the link looked correct.  *facepalm*