I've just upgraded my alienware laptop M17x's graphics card from a GTX580m to a GTX780m now i'm no techie when it comes to things like this i thought it'd be a simple case of plug and play with a few driver updates needed.... but alas I've taken the old card out and put the new one (reason i changed it was cause my 580m blew and also took my 2nd hdd with it too ;/ ) but its not as simple as that of course it never is. i now have a picture and my laptop turns on but when i try to go on the nvidia control center it gives me an error message and when i try to download the drivers off the nvidia site it says it gives me an error saying it" could not find a driver for this PC" now I've checked my driver manager under display and the only thing I've got listed there is a vga (which im assuming is the on board chip) so if anyone can help me resolve this problem at all would be very grateful and it would be also appreciated if you could help to speak quite basic and potentially show pictures haha