"authentication Failed" After Adding To Domain

I have an OpenSuse 10.2 machine which i was trying to add to a Windows 2003 Domain, I setup the IP address for the NIC and DNS etc, and i could see the domain, i could also see the OpenSuse machine from the windows server. At this point i tried to add the machine to the domain, it found the domain, and asked for a user account to access with, i put one in and all seemed ok, i then got an error about some things being in use and that i needed to reboot. After rebooting i now get "Authentication failed" for all logins i try. I have tried root, domain\domainadmin, domain\\domainadmin, domainadmin@domain, domainadmin.

I'm a newbie to Linux, but have played with it briefly in the past, i have reset the root password but get the same error.

Does anyone have any ideas, i really don't want to reinstall.

Thanks in advance
Greg

make sure that there is no domain selected on the logon screen - there should be a drop down box available on the logon screen which lets you choose your domain - make sure it is set to local.
you may have to click about on the login screen to get the box to show up.

make sure that there is no domain selected on the logon screen - there should be a drop down box available on the logon screen which lets you choose your domain - make sure it is set to local.
you may have to click about on the login screen to get the box to show up.
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I have joined domain and everythign went well. but I cannot see my domain in the dropdown list. do you know what I did wrong? thank you!