After clicking "add another item" it refreshes with the table and correct number of rows, but the table cells do not display the nodes. It wouldn't work in either Firefox 3.6.8 or IE7.

This has happened twice, the second time after I created a new node using the node widget. It may be a conflict with another module, I have an unusally large number of modules, so I wouldn't begin to know where the conflict lies. What's odd is I disabled the module, emptied the cache, re-enabled it, it still didn't work. So I disabled it again, then re-enabled it, and it works fine now in both browsers.