Reset the Dynamics GP system password to blank
Dynamics GP (Great Plains) will prompt you for a system password when you go to the Tools > Setup > System set of menus. If you forget the password, you can reset it by going into the database and running the following SQL command. Using Query analyzer run the following against the DYNAMICS database, it should clear the password to blank.
UPDATE DYNAMICS..SY02400 SET PASSWORD = 0x00202020202020202020202020202020