Deleting a newly created usergroup doesn't work.(FIXED)
 

Subject says it mostly. If you use the Photopost user system and you click the "Add a New Usergroup" and it creates a new usergroup called default. When you click on the delete button under the usergroup name it doesn't delete the usergroup.

try this in adm-misc.php add the code in bold

nope. The usergroup still exists.