If you are running Microsoft Dynamics CRM 4.0 and are tired of everything opening in a new window (CRM 4.0 actually treats the windows as popups), there is a simple IE setting that will fix this. Follow the steps below.
Microsoft Dynamics CRM 4.0
In Internet Explorer, go to Internet Options.
Under the general tab, click on the button that says “Tabs.” (In IE9 this button is “Settings” under the Tabs header)
Under the section that says “When a pop-up is encountered:” change to it to “Always open pop-ups in a new tab.” Please note, this does affect all popups. But if this is a work computer, and you are using CRM all day long, I highly advise doing this.
Hit OK and your done.