For anyone out there who is having issues with the MW3 bouncing APC bug or any other issues running the game in Windows 7. These are all the suggested fixes I found when researching the issue. I had tried all individually with little result, but when done in this order I now have a flawlessly running MW3 install on my Windows 7 x64 machine. (AMD Phenom II 975, Radeon 5850CF,).
1. First, clean install the game.
2. Then install the 1.2 patch (google it)
3. If you are using a Radeon card then download the radeon fix file mentioned earlier in this thread and extract to your mw3 directory. Then run the MW3patchddraw executable.
4. Download the MW3Loader file mentioned earlier in this thread (available here: http://www.4shared.c...3Loader001.html
) and extract to your MW3 directory. make a shortcut to the loader executable for launching.
5. In your MW3 directory make sure to set compatibility mode of the mw3 executable to windows 98.
6. Make sure to set wait for vertical refresh or vertical sync is set to always on in your graphics card settings.
7. Download cpu grabber here: http://www.mediafire.com/?ljy1g44odjg
8. Run cpu grabber at least 80% and click start. I had to set it to 99%, which had it maxing one core which then triggered core leveling causing an overal 25% cpu load on my system. **This is really important, it seems the more you can slow your system down the better the game plays. I also turned off crossfire and underclocked my gpu to the lowest settings.
9. USe the loader to launch the game.
10. Set graphics to hardware render, and max all settings except self-shaders which should be off.
11. Enjoy some Mech 3 goodness while waiting for MWO
The radeon fix file can be tough to get. You have to get access to the mech3project forums which sometimes can take awhile. I created an account today and got approved today, but i've heard that sometimes it takes weeks for the admins to approve your account. I have the file if you PM me I'll try to get it to you.
Dont forget to turn CPU grabber off when you're done playing!
With the theory being that slowing your system down stabilizes the game, it may prove beneficial to try and underclock your cpu, but I did not have to do this and do not recommend playing with cpu settings unless you know what you are doing.
Hope this helps anyone out there getting frustrated. I know I was about to give up when I finally got it working right.
Edited by Blood Legacy, 12 August 2012 - 09:16 PM.