[cozyfanatic]

I just joined this group yesterday afternoon and was reading all the stuff to do before posting a log. I did all the things it said, ran all the programs it said, and when I installed the Windows XP Service Pack 1a that's when I really had major problems. Now I can't boot in anything but safe mode...now I'm in safe mode with networking and this works alright, but it won't start up in regular mode without starting chk disk over and over. I've tried to cancel the startup but I really don't know how to do this.
I can't access system restore, says 'The precedure entry point RtlIsThreadWithinLoaderCallout could not be located in the dynamic link library ntdll.dll.'
And when I try rebooting it loads to a black screen saying that ''windows could not start up properly and could be due to a recent hardware or software installation.'' there are several options including going into safe mode, last known config, start windows normally, etc. however, when i click on any one of these options, it brings me back to the same screen.
I really need help!