We have a 2008 SBS domain environment that includes multiple OS/2 IBM machines. We are trying to make a smb connections to windows shares located on the 2008 SBS server itself and some others on domain PC's running XP from the OS/2 machines. We are able to see the shares but are not able to connect to them using multiple variations of username and passwords. We have modified the local security policy on the SBS 2008 server so that it does not require digitally signed communications with clients, and we have made sure that the local firewalls are not affecting communication. With these changed we are still not able to connect OS/2 machines to windows shares. Any ideas would help as this is something that worked with an older Windows 2000 server.