My W7 (ultimate) dosen't directedly connected to net, I see the "Circular Kernel Context Logger" error. Thank this forum, I do this : log in your computer adminstrator At console computer icon (right click) 1 at manager open it 2 at service open it 3 set IP Helper to manual (not auto) 4 exit MMC , restart computer at MMC event console see if it's solved. becuse I need dail out to connect to public net, I also set DHCP Client and WinHttpAutoProxySvc (depended front) to manual. The error seems stop! BY David HJY