Recently installed windows 8 x64 on my studio xps 1340 but having a few problems.

The driver for the webcam can not be installed and in the device manager there is a coprocessor without correct drivers. I tried to find the drivers for the nvidia MPC79 chipset to install the drivers for the coprocessor but couldnt find it. Installing the driver for windows 7 x64 wont intall or fix the problem.

The issue with the camera is the same. Windows 7 driver doesnt work.

Also there is a problem after rebooting. I can not log in. The username/password does not appear, it stays at the "slide-screen". I can log in after I put the laptop into sleep and then waking it up again.