I used to play Oblivion on my old HP Laptop and the console commands worked fine, but since I brought my new computer, suddenly the console doesn't open when I press the tilde key. (Next to the 1 key.) I have an MSI AE 2020 touchscreen computer with NVIDIA ION. My keyboard is a MSI StarTypeES500.
There is a known issue with Microsoft eHome Infrared Transceiver - If the other methods don't work, then uninstall this:
- Go to your Control Panel,
- Click System and Security, -> System,
- Go to Manage Devices, and find & click on Human Interface Devices
- Once in there find a file called "Microsoft eHome Infrared Transceiver" and uninstall it (My info came from here: http://www.gamefaqs.com/boards/959559-/56821937)