Hi,
Whenever I try to log in as a different user (other than root) all I get is a blinking screen and a message is displayed after around 5 minutes

"X is respawning too fast..."

And then I have to reeboot my machine to get back as root

Any ideas

Thankx in advance...

I think you are trying to go to runlevel 5, which by default starts graphical login screen. And for some reason it fails to start X and keep respawning. Change your runlevel to 3, make sure that your X is configured and you can start it from command line by typing "xinit" or "startx". After this you can put back your old runlevel.
(
To change default runlevel edit /etc/inittab and change the line
id:5:initdefault:
to
id:3:initdefault:
)
--Sarin
( Sorry, May be I am wrong. I think in that case it should have said something about level 5 )

OK...
I will try that ...but can you please explain to me what are run levels and why they are important

Thankx in advance...