it happened to and the remedy is pretty simple just change the "diagram_id" field in Sytem Tables - sysdiagrams in current DB and set the default value to 0 u can check to this post by arjo soer PS: this for MSSQL see u next time
this is my personal web blog..anything that i do each day hopefully can get in this blog since i only able to write it if i have spare time at the office..(ky g kerja aj ya hahaa)