BGE Runtime Black Screen

When I run the executable I get a black window, if I press the relevant keys I can play the game and get the correct sounds, which verifies that the logic is working and the game is playing, but no picture, just a black window, I guess it makes the game more challenging!

I’ve packed External Data into the blend, done Export… Save as Game Engine Runtime. The DLLs are in the folder.

I’m using 2.61 and am on Windows 7 64 bit.

Has anyone any ideas?

Thank you,
Andrew

The external player requires all objects to have a material. I think…

I’ve checked the outliner and every single object does have a material.

Any other ideas?

Thanks,
Andrew

I’d really like to solve this and get the game finished. Has anyone got any ideas?

Thanks,
Andrew

Always provide a blend file where possible.

I tried uploading it to the forum but its 53MB…

I’ve now signed up to filefactory so here it is:

http://www.filefactory.com/file/hfefd21tdcf/n/ballshooter4_blend

Thank you,
Andrew

If your graphic card has optimus system I has problem with nvidia optimus once.
If not optimus problem so I don’t know.