i have a problem with using OPC between two computer station
i follow all the setting in the manual and help FAQ

1- Firewall is off in the two PC
2- Configure the DCOM on the both PC
3- give all access for "Administrators" and "Everyone." users
4- configure OPC XML Manager Client on the client PC
5- add OPC connection in Winccflexible

The tag browsing read the tag on the server but when i try to select a

tag,it coulden't done.
When i tried to maunal modfiy for the tag address!!!! It's work and run time read the values

Also tag browsing didn't read all tags from the server.

can anyone give me an expiation or solution
i am using WinCCflexible 2007 on both station
and work with Windows Xp SP2