Weird behavior with ruby 1.9.1

Hi all,
I’m using rails 2.3.2 on ruby 1.9.1 and also on ruby ee 1.8.7
In one of my view, I have radio buttons to select a file.
When the file is selected, I update some links via the "onclick =>
remote_function).

It’s working fine ruby ee but on ruby 1.9.1, I’m receiving well the POST
answer but the links are note updated ?!

I took a look at the answers (found via firebug) and I don’t see any
differences.

Any thought?