I had the same problem. Not only at Cufon.Refresh, but also at Cufon.Now. And not only in IE8, but also in IE7, IE6, and even in IE9PP. I noticed that I am using this code for reuse:
Cufon.replace('h1',{hover: true})('h2',{hover: true})('h3',{hover: true})('cite',{hover: true})('.cufon',{hover: true});
('.cufon', {hover: true}); the part was the one that generated the error. I spent two days to find out how this might cause an error ...
CSS, .cufon sytling. CSS .cufon. cufon IE, .
, CSS:
.cufon { }
.
( Cufon 1.09)