Visual Studio 2010 only displaying one file at a time

Suddenly my Visual Studio 2010 is only able to display one file at a time.

Every time I open a new file, it just replaces the current one.

Is it a setting? Is it a bug? Does anybody have a solution for this issue? It's real开发者_开发问答ly frustrating...

Try to reset the settings.

In VS2K8, its there under Tools:-> Import Export Settings:-> Reset all.

Double check your settings in the Tools > Options > Environment > Documents

There is an option in there: Reuse current document window, if saved and ensure that it is unchecked.