login problem "looping" in snow leopard

Hi,

I need some help with my problem I have on my MacBook Pro 17 Core 2 Duo.

Recently I installed Snow leopard everything was ok until I installed "Little Snitch" and I guess din't uninstalled properly and could messed up with my network ? Eventually I uninstalled correctly. But maybe it has nothing to do with bellow...

Anyway problem is that I can't login to my account in login panel. Im typing my password and when system it's starting, after seconds comes back to login panel and all over again. There is also info an login panel above my user name "Network Accounts Unavailable" and red dot. I think this is the problem but I don't know how to fix it ?

I can easily login as "root" admin but don't know what to do...

I already reinstalled OS X and updated everything 10.6.8 now.

After reading on the net probably I need to do something in System Preferences/ Accounts/... but don't know exactly what.

If anyone knows please some help...