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Virtually all IBM and Lenovo ThinkPad and ThinkCenter laptops allow you to hook up an additional monitor or projector to the computer. When you add an external monitor or projector to your notebook, you can choose to view the display on the computer, on the external device, or on both the laptop and the external monitor or projector at the same time. Toggling between viewing devices is as simple as pressing a couple of keys on the keyboard.
DPI, or "font size" is variable, depending on your monitor's native resolution, The resolution you have selected for it in Windows (Desktop-->Properties[right-click]-->Display Properties-->Settings), and what program you are currently using (browsers can be "zoomed").
The results you are seeing are actually from the monitor itself. It's telling you the vertical and horizontal sync frequencies to help you troubleshoot your lack of display.
You'd usually see this happen when someone has set the resolution too high, and the monitor just can't handle it.
Power up, and keep tapping F8 until you get a Windows boot menu. Choose "safe mode", let it boot to windows. Go to display properties, and then settings. The slider for the resolution will now be right down. (left-most). Click it once, so that the apply button becomes valid. Hit apply and let it restart.
You should now boot to Windows normally, but with a very low resolution. Go back to display settings and bump it up one step at a time, using the apply button. (which will revert back one step if you don't hit "yes" within 20 seconds).
That way, you can find a resolution that looks right, but isn't too high for your screen.