Stuck on login screen after 10.6.4 update

[elchuchopisado]

First off let me tell you how i installed just in case theres an issue there. I have 3 partitions (Snow, Backup, and Time). Snow is for the main system, Backup is just a 10.6 retail installation that i can boot with boot CD in case the main system doesn't work (which is what i'm doing now) and time is for time machine. Ok so the way i installed is by installing 10.6 to Backup first to get that working. I then installed 10.6 on snow FROM the already working Backup installation. I then installed Chameleon, set up the kexts in there and restarted. The system booted up fine and everything was working and i started installing updates. I had already tested 10.6.4 beforehand and i had not been able to boot, after installing a newer version of NVKush.kext i was able to boot into 10.6.4 (i knew it was the problem cause i just got a black screen after starting up seemed to have gone fine) but anyway it had fixed it. The partitions were messed up when i had tested 10.6.4 so i decided to wipe clean and start over with those 3 partitions and have everything the way i wanted. Anyway i followed the same procedure on the new installation, installed 10.6.4 and replaced NVKush.kext with the new one. I also deleted LegacyHDA.kext and updated the AppleHDA.kext to get sound working. Now when i try to boot everything seems to go fine and then i get to the login screen displaying my name and then a guest account. I can move my mouse and everything but the buttons are unresponsive. I tried waiting around 10 minutes and still nothing. It just hangs at the login screen. Any ideas about what could be causing the problem?

[Neflem]

You may need the PS2 drivers.

 

If you plug in an external keyboard and mouse, does it work?