So heres the deal...I've been spending a whole bunch of money on getting this forum up and running and now i really don't want to have to spend more, but unfortunately i'm having some issues with one of my users and he can't just change his name. I need his name to be the same, even if I have to delete it out and recreate it. I'm getting an error that I need fixed, the problem is when i try to go in to delete his name or figure out whats going on in the ACP of my phpbb board, i get the following error when trying to pull up his name.
SQL ERROR [ mysql4 ]
Illegal mix of collations (latin1_bin,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation '=' 
SELECT user_id FROM phpbb_users WHERE username_clean = '*the users name here*'
FILE: includes/db/[url removed, login to view]
FILE: includes/acp/[url removed, login to view]
FILE: includes/[url removed, login to view]
FILE: adm/[url removed, login to view]
If you can fix this problem for me so his username will work or i can delete and recreate it. Please bid. I would prefer to just have his name working again, but will take what i can get.