I'm not an expert, but by searching I found this http://www.xoutpost.com/electronics/...ng-16-9-a.html Which contains the following information on video modules.

6 902 015/016 *may only work for small 4x3 screens!
6 903 727/728 *may only work for small 4x3 screens!
6 906 923/924 *may only work for small 4x3 screens!
6 911 221/222 *may only work for small 4x3 screens!
6 916 136/137 *works with both small 4x3 and 16:9 wide screens!
6 924 749/750 *works with both small 4x3 and 16:9 wide screens!
6 923 268 *works with both small 4x3 and 16:9 wide screens!
6 923 418 *works with both small 4x3 and 16:9 wide screens!
6 936 096 *works with both small 4x3 and 16:9 wide screens!
6 936 759 *works with both small 4x3 and 16:9 wide screens!
6 945 298 Kit P/N 65 50 0 153 183 *works with both small 4x3 and 16:9 wide screens!
6 946 423 *works with both small 4x3 and 16:9 wide screens!
4 124 836 *works with both small 4x3 and 16:9 wide screens!
6 953 003/002 *works with both small 4x3 and 16:9 wide screens!

Check you VM number.. If it is your VM there used to be places that could recode the VM to work with wide screens, search these forums to find them.