Just to be sure, make sure you are not trying to run HyperSizer over emulation or over Remote Desktop or any other program like that. The HyperSizer graphics will not work on these types of environments.
If you are running HyperSizer directly on your computer, this error is most likely due to a problem with the configuration of Microsoft DirectX on your computer. You can check out the DirectX configuration by following these steps.
1. Go to Start - Run, type "dxdiag" in the Run window and press OK.
2. A window should pop-up called the DirectX Diagnostic Tool. First check toward the bottom of this window for the DirectX Version. Make sure it is version 8.0 or above.
3. In the DirectX Diagnostic Tool, go to the "Display" tab. There should be a button that says "Test Direct3D". If that button is grayed out, then you don't have 3D acceleration enabled on this computer. You might need to reinstall DirectX from the Microsoft website.
4. Press the "Test Direct3D" button. You should be walked through a series of tests where rotating cubes are displayed on your screen.
Please try all of these steps and let me know the results. If DirectX appears to be correctly configured on your computer, then we can try looking for another solution.
Phil