You got me on this one. I would have to believe that you have an option clicked somewhere to give preference to the last clicked window...something automatic. What browser are you using, Sept? Maybe that will help in figuring this one out.

IF IE, I found something about Windows display settings, regarding viewing windows... in tools, advanced... there is another one that says to reuse the open window for the new click... but that isn't what you need. Try querying each of those settings on that list?