Here's a quick rundown of it:
1. In the screenshot, your video card is an ATI Radeon X1550. You should find your drivers on your computer and uninstall them. You should be able to do it from the Add or Remove Programs thing. Not sure what the program is called in Swedish.
2. Download the newest drivers from here:
http://support.amd.com/us/gpudownload/wi...ng=English
You'll have to mess with that if you have Vista 64-bit, I set it to 32-bit.
3. Restart your computer and install the drivers. Then restart again and try to launch the game. The launcher will show the video device as ATI Radeon X1550 or something similar if it is recognizing properly. If it isn't, the launcher will show something like 'GDI Generic'.