cimplicity historical trend problem

hi folks,

i am using cimplicity v6.1 sp5 for 1 server and 1 viewer but

i have problem with cimplicity viewer historical trend .

this look like my odbc configuration. every time i try to

connecting it with server sql i get this error message





is that any additional software i need to install?

my server historical trend was work ok , just a bit slow ...

regards

Check that your application and logon has the proper authority to access the SQL Server.

i manage to get the historical data at viewer, but the trend was so slow

i even enable the parameter " trend disable readnest "..