Finally i got it working.The K-Lite and WebM codecs aren't going to be much help in this case. What I recommend is using Windows Updates to search for any new updates available, including any marked as "Optional". Install those and restart your computer and that should correct your resolution problem.
*EDIT*
Faerin has suggested this as well..
1 Reinstall your graphics drivers.
2 Disable Full Screen Optimization:
2.1 Right click on Man of the house.exe and select properties.
2.2 Click on compatibility.
2.3 Disable fullscreen optimization.
2.4 Click apply and ok.
Updated windows with every update i could find, updated the graphics card driver.
In het game properties i disabled fullscreen optimization and selected run as administrator.
That did it for me.
And i must say the animations are really great!
Thanks for the help!