Hi,
Check the settings of any third-party security, privacy, ad-blocking
programs (or toolbars) that are installed. One of them is probably blocking
the new window. You may have to reconfigure (relax settings) or uninstall
the culprit.
This sounds, specifically, like the work of Ad-aware Pro- the "Block
pop-ups" feature. It sometimes allows a window to open momentarily before
closing it.
Hope this helps,
Don
[MS MVP- IE]