Glitches in native resolution

[Jezze]

First of all, awesome game! I loved playing the demo version, so I had to buy the full version.

Unfortunately in the full version i have glitches when I run the game in its native resolution (720x576) - which looks the best I think. I seems like some polygons get clipped to early. Sometimes I also have black borders in the background layer. Here are two screenshots of both problems. These problems were not present in the demo version nor they're happen in other resolutions then 720x576.

https://dl.dropbox.com/u/5414984/intrusion-2/intrusion-2-glitch.png
https://dl.dropbox.com/u/5414984/intrusion-2/intrusion-2-black-border.png

OS: Windows 7 64-Bit
CPU: AMD Phenom II X4 955
GPU: ATI Radeon HD 5850 (Catalyst 12.10)