@Lawgiver:
Look at the content of your library sfml-window-s-d.lib:
Longnames:
00000 : H:\Programmierung\trunk\build\vc2008\..\..\Temp\vc2008\sfml-window\Debug static\Joystick.obj
00093 : H:\Programmierung\trunk\build\vc2008\..\..\Temp\vc2008\sfml-window\Debug static\VideoModeSupport.obj
00194 : H:\Programmierung\trunk\build\vc2008\..\..\Temp\vc2008\sfml-window\Debug static\WindowImplWin32.obj
00294 : H:\Programmierung\trunk\build\vc2008\..\..\Temp\vc2008\sfml-window\Debug static\Context.obj
00386 : H:\Programmierung\trunk\build\vc2008\..\..\Temp\vc2008\sfml-window\Debug static\Input.obj
00476 : H:\Programmierung\trunk\build\vc2008\..\..\Temp\vc2008\sfml-window\Debug static\VideoMode.obj
00570 : H:\Programmierung\trunk\build\vc2008\..\..\Temp\vc2008\sfml-window\Debug static\Window.obj
00661 : H:\Programmierung\trunk\build\vc2008\..\..\Temp\vc2008\sfml-window\Debug static\WindowImpl.obj
00756 : sfml-window.dir\Debug\WindowImplWin32.obj
00798 : sfml-window.dir\Debug\VideoModeImpl.obj
00838 : sfml-window.dir\Debug\Joystick.obj
00873 : sfml-window.dir\Debug\WglContext.obj
00910 : sfml-window.dir\Debug\WindowImpl.obj
00947 : sfml-window.dir\Debug\Window.obj
00980 : sfml-window.dir\Debug\VideoMode.obj
01016 : sfml-window.dir\Debug\Input.obj
01048 : sfml-window.dir\Debug\GlContext.obj
01084 : sfml-window.dir\Debug\Context.ob
It looks like you somehow linked some obj files twice from two different places. And compare it with the following content of your sfml-system-s-d.lib.
Here everything is allright.
Longnames:
00000 : sfml-system.dir\Debug\ThreadLocalImpl.obj
00042 : sfml-system.dir\Debug\ThreadImpl.obj
00079 : sfml-system.dir\Debug\Platform.obj
00114 : sfml-system.dir\Debug\MutexImpl.obj
00150 : sfml-system.dir\Debug\Utf.obj
00180 : sfml-system.dir\Debug\ThreadLocal.obj
00218 : sfml-system.dir\Debug\Thread.obj
00251 : sfml-system.dir\Debug\String.obj
00284 : sfml-system.dir\Debug\Sleep.obj
00316 : sfml-system.dir\Debug\Randomizer.obj
00353 : sfml-system.dir\Debug\Mutex.obj
00385 : sfml-system.dir\Debug\Lock.obj
00416 : sfml-system.dir\Debug\Err.obj
00446 : sfml-system.dir\Debug\Clock.obj
