Thanks for the link.
But it says "download this driver only if you reside in the United States"
and I'm in Sweden (North of Europe) so..
Pardon me I should have stated that.

I will try to get in contact with the Dell support over the phone. And look for a swedish dell-forum.

But this should really be very easy to solve I belive.

 

Is it correct to assume that I need the drivers for the network card?
What others drivers could the "?" imply.

? Other devices

   ? Ethernet Controller

   ? Network Controller

(In the device manager.) 

 

In the detailed computer information (throug Help center) it says Network card - Not installed.

But it is and the card worked just fine before the reboot.

If anyone who knows this are reading

please give me some clues.
  
Best regards

/ Camilla

It could be for the "Wired" network controller.

 

http://support.dell.com/support/downloads/download.aspx?c=us&l=en&s=gen&releaseid=R61603&SystemID=INS_PNT_P4_8500&servicetag= &os=WW1&osl=en&deviceid=2966&devlib=0&typecnt=0&vercnt=2&catid=-1&impid=-1&formatcnt=1&libid=5&fileid=78207