I have lost contact with the built in keyboard and touchpad. If I shutdown the computer in sleepmode and start it again, the keyboard works, but not the touchpad.
The "PS/2-compatible mouse" = "touchpad" in the devicemanager have an exclamation symbol and the reason "This device is not present, is not working properly, or does not have all its drivers installed. (Code 24)"
The support at SONY, suggest a reinstallation of windows 7. I have a lot at applications installed so I wont do this.