Hello !
I installed SL 10.6.3 on my PC by using iATKOS S3v2 and I updated today in 10.6.6 with apple official combo update + Multibeast for USB rollback.
After reboot, everything seemed to work fine except my graphic card, a HD4850.
I tried to install netkas patch for 10.6.6 but now, when it boots, I'm stuck on this message : Ethernet [AppleYukon2]: Link up on en0, 100-Megabit, Full-duplex, Symetric flow-control, Debug [796d,6f48,0de1,0200,45e1,4000]

Does anybody could help me?

Config : P5B Premium, E8400, HD4850