I added chat activity in my course. After opening chat popup window, chat main block is white. Messages don't appere. I waited so long time, and typed some words. But it is same.
On the upper right, I can see user picture and name.
I set up this site on IIS5 based on Win2000Server.
I confirmed both Moodle version 1.3 and 1.2.1.z
chat module version is 20040223.
It's running another my test site on Apache based on WinXP.
Please give me your comment.