right is: 1. run mm7 setup program 2. check for "software 3d", "full screen" and "disable 3d audio".

and if that didn't work, check in the registry if 3d audio really is off. to do this go to the start menu, hit run and type regedit. look up mm7 (its under hkey_loka_machine - software - new world computing). now look up disable3dsound, its number 15 from the top. make sure the number on the same line far to the right is 1. if not change it to 1.

if THAT didnt work, leave settings like that (vital), then go to start menu and hit run. type dxdiag, and let the blue line finish of to the right in the bottom left of the window that pops up. now select the sound tab and set the hardware acceleration to basic acceleration (draw it to steps to the left).

SHOULD work, if not, it's just you . i am really sorry for you if it doesnt work, mm7 is an awesome game.