Back-Up SQL Express 2005 Problem

Hi,

I already use the search button and i see the fix post for my problem, but still can't back my database..

still this error shows. (EP6 S2 Database Files)

http://i862.photobucket.com/albums/a...ackuperror.jpg

Hope someone will help me...

try to rename or save to other location... that's make you help...