For Online Computer Support, Ask a Computer Technician
what type of device is it and how far off center is it ?
i got your response on the other post.
i have some things that you can try but i am not sure that you will be able to do them if you cant do anything on the screen with most of the computer.
what i would suggest is that i log in remotely and it might be that i can use the whole screen on my end and then i can reset the video drivers for you pretty easily.
I can do that in about an hour or any time tomorrow would work for me as well.