Problem with window.showModalDialog() method

[Guest]

Dear Friends,
I have one page which includes one web user control named Address.ascx. This
page is named StaticEditData.aspx which is opened from StaticTableData.aspx
by using window.showModaldialog() method.

When an exception get generated in web user control Address.ascx the title
of page StaticEditData.aspx get disappeared. The Title mean text included in
<Title> tag disappears.

But the same page works with window.open() method.

I want this page should be shown as modal dialog. do u find out what is the
probelm and how to solve it.

Thanks for your help.