What does Help / About tell you is the BlitzMax Release Version? Downloading should be followed by updating and then syncmodding. Have you done all these so your 'version' states 1.22?
<edit> Once you can confirm you're on the latest level then try...
setgraphicsdriver glmax2ddriver()
to see the results in OGL and 'Start / Run / dxdiag' to check your DX level.
If it still fails you need to give machine spec especially graphics card and driver level.
<edit> Once you can confirm you're on the latest level then try...
setgraphicsdriver glmax2ddriver()
to see the results in OGL and 'Start / Run / dxdiag' to check your DX level.
If it still fails you need to give machine spec especially graphics card and driver level.