Passwords failing on my website

I just started my free trial and I'm running into a problem. I have pages on my site that people have to use user name and password to access. It has always work before but now when I used SmartFTP my customers have no access. I don't know if it makes any difference but I'm using the normal FTP protocol. Any help would greatly be appreciated.

Thanks Brad

That's not related to SmartFTP.

That's not related to SmartFTP.
I would normally agree but the only thing I changed was I used SmartFTP, the content of my site was exactly the same

I would normally agree but the only thing I changed was I used SmartFTP, the content of my site was exactly the same

maybe you uploaded your password file in binary instead of ascii?