Hi, I'm the author. I haven't seen that behaviour before. Would you mind telling me which browser/OS you're using?
Happens reliably for me, with other odd behaviors on other sites (not all). Safari 5.0.2 on an up-to-date OSX 10.6. I could record a screencast, if you'd like, though I'll try cleaning things up first. An extension / the fact that I haven't shut down Safari in 4 days could be messing something up.
are you sure? press 'B' to see the bubble, otherwise it just highlights the links.
Did you check the screenshot? The grey circle is the cursor, and the blue-highlighted link is what it thinks is closest. All three of those underlined phrases are links, but it gets it massively wrong when it's near the mid-left of the three.
Sorry, I missed it in a rush earlier. But the cursor is accurate for me.