cant login to ubuntu after the new updates

[le1232]

after i download the new updates(beside the non free updates) i cant login to ubuntu
anyone knows what to do with this problem?(i have a 64 bit hardy heron)

[penguinpi.com]

Can you login as root via "Recovery Mode"? When GRUB is loading press esc and select "Recovery Mode". If you can log in as root, you can change your password or check /var/log/auth.log to see why you were having login problems.

[le1232]

i can open the recovery mode
i wrote
/var/log/auth.log as root but i get the message "permission denied"
when i type it with "sudo" i get "no such file or directory"

[faisal892]

Try this

sudo apt-get remove compiz
sudo apt-get remove compiz-core
sudo startx

I hope this will help.

Regards

Faisal.