Forum Moderators: not2easy
It's not the peekaboo, it's the "duplicate characters bug" (Google it) but it's equally annoying. :-) One previous discussion [webmasterworld.com] in which it can usually be solved with position:relative or hasLayout on the offending elements.
Anyhow, it was indeed the duplicate characters bug, the problem has been fixed, and I'm eternally indebted. What a weird ride that was. Duplicate content? Sheesh.