When I migrated to WordPress after using MovableType for several years, I could not at first seem to get trackbacks to work properly. I was never able to get them to work with Movable Type, so it was not at first a big deal, but it frustrates me when other people can get somewhat simple, installed technology to work and I cannot.

With some tweaks, and the use of a really handy free trackback testing website, Test Track,  my trackbacks seem to be working properly. See it work both ways here.

I think I like the open-source spirit!