I think i have found an epic fix after about 6 hours of trying things to get M&M 6 to work.

It is Very simple.

You will need the old directx files. They are located on the original disk but I believe any OLD directx WITH the dxtool.exe will work. Run DXTOOL.exe and uncheck "Use Direct3D Hardware Acceleration" and "Use DirectDraw Hardware Acceleration". Apply and run the game.

I copied all of the files in the directx folder to system32 desperately, since the directx installer would not, but i did not overwrite anything. I do not know if this is necessary.

This MAY only work in window mode, But I could not get it to run without the vid card rebooting over and over before. Now it works Smooth as butter

To make it start in window mode there are a few ways. The easiest is simply pressing f4 while the game is running. This requires the GrayFace patch.
To resize the window to any size you want to here is a link.
www.celestialheavens.com/forums/viewtopic.php?t=9764
Put the DLL from the link above in a sub directory in mm6 folder called "ExeMods". You will probably have to create it.

<Windows 7 Ultimate x64, Nvidia Geforce 750ti :337.88 Driver , Latest GrayFace patch. 4:00AM and now i can finally sleep.

Enjoy