Silent Hunter 3 WAC 4.1 +MaGui v.3.4 Resolution Issues

Hello everyone! I m very glad to speak with you! Firstly, let me say a big "sorry" for my English, i ll try to speak as correct as i can. Thanks a lot for your attention!

I come here to ask for your help in one hard question for me, i can't solved it for a few days already. I have installed Silent Hunter3 and WAC 4.1 with 16 km atmosphere, and MaGui v3.4. With patch for WAC 'course. Default settings of this mod has 1360 x 768 pixels. It's works fine, but i have a big black lines in top and bottom of screen in game. I have a 1440 x 900 resolution and i have try to change it in different folders. But it doesn't work correctly. When i change something it just saying "cannot initialized 3d engine", or "silent hunter 3 has stoped working", or i see just black screen. I already try to instal "Hires for silent hunter3", or see same problem in the internet, and i find it. In one steam topic one man says to change the resolution (Set resX=1920,resY=1200). And it doesn't work. I have already reinstall my silent hunter near 7 times, tryin a lot of different ways to find solution of my problem, and i really can't do something with that. I ll already checked Subsim forum, but even here i can't find some solution. I think it's only my mistake, because when i instal WAC in past, it works good on my screen.
Please, can someone help me?
With best regards
BlackWanderer.

p/s; i hope that i have create this topic in right place