I can understand English very well, but I can not write,.
Do not worry.
you can send me information in english lenguaje. OK.

my problem is:
In my application when I send a report preview it is ok
but when the user click on the close window button my system is hang!, this is not problem when the user click on the exit button in the report preview toolbar.

what can I do to correct the problem.?
thanks!.