Hey Daeta, I switched from the ITE account (above) to this account. You'll see future comments from this and not that. Let me know how you fare with the link:
http://forums.crackberry.com/f50/blackberry-professional-software-unable-delete-user-15543/:
- Open the command prompt on the server with the BES
C:\>osql -E
1>use BESMgmt
2>select DisplayName from UserConfig
3>go
This will (should) give you an output with all the DisplayName's in your database. Locate the user in question, and then follow the next steps:
-still in the command prompt
1>use BESMgmt
2>delete from UserConfig where DisplayName=<name from last step>
3>go
1>exit