IE8 crashes after drag and drop

I am trying to drag and drop in the exemple 20_tooltip.html on IE8 8.0.6001.18702 on windows XPSP2 and after three or four moves the browser crashes.

Anybody have ever seen this happening?

I have got this error after the crash. I put my printscreen for more details.

Detalhes dos erros da página da Web

Agente de Usuário: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
Carimbo de data/hora: Tue, 20 Dec 2011 15:14:07 UTC

Mensagem: Argumento inválido.
Linha: 13
Caractere: 51
Código: 0
URI: localhost/dhtmlxScheduler_v30_11 … imeline.js

Unfortunately we can’t reconstruct it locally.
Please try to run IE in “without extensions” mode and go through the same steps.
( it hardly possible that js code itself can crash browser, most probably it is side effect of some IE’s extension )