osx10.6.8. Booting slow/Bluescreen with GA HD6850

Wondered whats wrong with the boot of my first hackintosh:

My whole Boot Sequence takes very long, after like 5secs of the Tonymac Screen I get ca. 70 secs of grey Apple Screen with Spinning wheel and then another 60 secs blue screen and then desktop.

When I remove the Graphics Card it takes the 70 secs of Apple Screen without any blue screen.

I read of 20secs or so boot time, so my 70 cant really be it?!?

Apart from that, the system seems to work well & fast.
I attached kernel.logs with/without GPU.

OSX 10.6.8.
MB: GIGABYTE GA-Z68MX-UD2H-B3
CPU: Intel Core i7 2600k
RAM: Corsair 16GB Vengeance blue
COOLER: Corsair Hydro Series H50
GRAPHICS: Gigabyte HD6850 OC 1024MB
SSD: 60GB OCZ Vertex 2,5 SATA
HDD: 1TB Samsung SpinPoint F3 HD103SJ
LITEON iHAS324 DVD-Burner
CASE: Antec P183

Thankful for your help guys!
Mrgreeen