Some users can't access shared folders/SQL after upgrade to SBS 2003 SP1

Hi

Does the server use Active Directory?? Have you check permissions and group and individual access rights for the users. If you run Active Directory are the computers members of the Domain?? Are you certain the users are logging into the Domain or maybe they are logging in to the local machine. Sorry for all the questions, it makes it easier for us to help.

wrtechnology

Sorry for not being clearer.  Yes, I use Active Directory & everything worked before the upgrade to SP1.  The computers are members of the domain and I reset the accounts that weren't working.  The users in question are definitely logging into the domain and not the local machine (although it acts like they are logging on locally -- if they try to access the server the only way to view files is to enter administrators UN/PW).   How do I check the permissions for group & individual access rights?  They are all members of the Domain Users & Users groups.  

Thanks

There is no SP1 for SBS 2003 yet. SP1 is only currently for Windows Server 2003.. NOT SBS

Sorry, I wrote SBS, but it is Windows Server 2003.  My appologies.

Ok, I have to answer my own question.  It was the firewall that was installed on the SP1 upgrade that would now allow users to log into the domain.  When the users would try to log on it took about 2-3 minutes and they would get their desktops but could use no shared folders, SQL, browse the network etc.  Interestingly, no errors or warnings on the server side.  Some of the clients had to be logged out of the domain and into a work group then back into the domain to be recognized.

Thanks for all the help anyway.  Hopefully my problem will help others.