Hi,
I'm not sure if it 'a bug or not, but it' s very annoying, I'll try to reply / explain the bug
if you open your example application here http://www.visualwebgui.com/live/webmail/dhtml/
1) log inside the application
2) copy the url browser
3) open a new tab and paste the url
- you are inside the application, well not bad but not good too.
but now if you interact with some operation like "new email" the form appear in two browser, it's correct this behavior?
(we have the same problem with our development application ver. 6.4.0c)
thank you