problem with system copy crm 7.01

Hey,

today i tried my first system copy over SWPM on Windows 2003 r2 / SQL 2005

at ABAP Export on step  "testing database connection" i get following error message r3load.exe -testconnect exists with error code 2 see log files. log file in attached.

i tried it via cmd too

(DB) ERROR: db connect rc = 256

(DB) ERROR: DbSlErrorMsg rc = 99

i got the newest kernel (721) and set up following environment settings:

DBMS_TYPE                          MSS

MSSQL_SERVER                    MSSQLSERVER

MSSQL_DBNAME                   <sid>    

MSSQL_SCHEMA                   <sid>

MSSQL_USER                        <sid>adm

MSSQL_PASSWD                  pass

MSSQL_FORCEOLEDB          1

that was all i can find in notes or other entries. Please help me