Exception error in Admin module

Hi Experts,

We are using BPC 7.5 M Sp04 with SQL Server 2008 on Windows Server 2008, I am trying to process the dimension but getting the error message "An exception error has occured; check the client log file, log id = 516 for more details", My question is where i can find the Client log file the error message is referring.

Thanks,

Rohit