I had MM7 installeed on and running fine up until dec when I had to replace my hard drive. I had college so didn't install mm7 back until now, but I keep getting a d3d failure when I try to run in full screen. I have tried everything in compatibility, and the only thing I can find in google is "install the greyface patch" Which I tried with no success. I can run it fine in windowed, and can get an almost fullscreen experience in running the rez low however this creates an issue with the mouse pointer being about an inch below where the click registers. I can't see it in windowed with out the rez lowering and can't play it because I can't click accurately so I need fullscreen mode. I am running in 16 bit color also.

Just in case you haven't yet, install DirectX 9.0c End User Runtime to make sure there are no older components missing on your system:
[url=http://www.microsoft.com/en-us/download/details.aspx?id=8109 ]http://www.microsoft.com/en-us/download/details.aspx?id=8109 [/url]

Also try turning off hardware acceleration for the game. If I remember right there's a setting in the graphics options.

There is no graphix options menue. It is all under video and ther eis no hardware acceleration options in htere.

Also the directx 9c thing is not the problem I have done that.

I don't have the GOG version here, so I can't check it in detail, but usually there's a registry key controlling acceleration:

Open regedit (press Windows-Key + R and type regedit) and navigate to:
HKEY_LOCAL_MACHINE/Software/New World Computing/Might and Magic VII/1.0
If you've got a 64bit Windows, it's found under:
HKEY_LOCAL_MACHINE/Wow6432node/Software/....
the path there might vary slightly depending on your system. (Search for "2dacceloff" if you don't find it.)
There you'll find "2dacceloff", change its value to 1.

Now I get DDerr_unsuported in file: d:\mm7scr_eng\mm7\code\screen16.cpp in line 2331

Also found that error here, but it didn't work for me. I can't post links but the topic is mm7_crashes_on_start .

Looks like you'll have to turn acceleration on again ( 2dacceloff => 0).

Maybe the fullscreen problem is connected to resolution.
Try running the game in 640x480 (force it in compatibility settings) If you've already tried this and it's still on try off again.
If you don't care mixing up all your desktop icons, lower your desktop resolution to your games resolution, just to try if this helps (fullscreen doesn't need to change the resolution then).

Turn off scaling in your graphics card's control panel.

the 640 x 480 was something I tried before ever posting on here. the issue is desktop resolution (which wasn't a problem before the hard drive crash) which makes no sense to me. Why is this an issue now and it wasn't before?. Anyway the only way I get it to run is putting it down to 800x600 desktop and that screws with everything else. Looks like I am gonna have to jump through hoops every time I play this.

Sounds like you lost some needed game files somehow in your drive crash--or some files were corrupted. Definitely reinstall the game, and it won't hurt to get the last release of the D3d runtime from Microsoft and run that, too, in case the problem is caused by a few missing D3d drivers that also got trashed in your crash. The good news is that if it's simply a matter of the game files being corrupted then a game reinstall and D3d reinstall will definitely fix you right up.

But...if you are having similar problems with other games and/or applications, too, then you might need a refresh/repair reinstall of Windows. Some drive crashes can create massive problems. Anytime you have a drive crash and start having problems you didn't have before, it's a result of file damage caused by the crash.

More importantly, increasing and intermittent problems with hard drives almost always signal an impending drive failure so move whatever you can to a different hard drive ASAP. Also, it's possible to screw up your files simply by not shutting down Windows properly, like just cutting the power instead of shutting down, etc.