My hmtl page causes a fatal exception in IE.

I applied latest patch loaded today. This does not help. I have a reproducible sample which crashes IE 5.5 and IE 6. My web pages are IE specific.

Repro is a bit complicated and includes server caalback. However, IE crashes always. I tried in win 98 and w2k computers.

Any idea how to fix this ? I think I must change something but no idea what. The are a number of pages involved, including javascript and xml data islands.

I can give step by step repo, but this includes also web server scripts installation and a number of pages in client side.