htaccess problem

Hey all. I've written htaccess files and stuff with one or 2 users, and it works fine. I decided that making an htgroup file would work best in my situation though, so I went to webmonkey.com and followed their tutorial to make the htaccess files. As far as I can tell, all of my files are correct. But for some reason when I try to authenticate, the server won't take my info as valid. Has anyone else had this problem with using an htgroup file? Thanks. Jason