Display/Screen not centered to HDTV

I am using my Sony Bravia LCD PC jack for the my pc's display(for the moment until I get a longer HDMI cable). The screen is severly shifted and I cannot adjust it by just uing the hortizal control, it is still out of range. Is there another way to adjust it via windows drivers to minize the shift(like in linux)? Any help would be great.
Oh BTW, I also am using the latest ati driver 9.10. I had the same problem with the windows driver.

thanks for the help.

Does your graphic card come with a control panel (most do). If so go into the Graphic Card control panel to see if there is anyway to adjust from there. Also, you should know whether your TV is 720 or 1080 that is a key in setting the adjustment. Please let us know how it goes.