Forum users cannot change password
 

I have this problem since I installed vb 4.
This is what my users (I tested it too) get when they try to change passoword:

The password you have entered does not match your current one. Please press the back button, enter the correct details and try again. Don't forget that the password is case sensitive. Forgotten your password? Click here!

And there is no option to write your current password. This is prtscr
http://i56.tinypic.com/j08emd.jpg


I tried to reupload profile.php and that did not fix problem. I saw that some other forums had same problem, but they fixed it with reuploading. For me, it still doesnt work.

please help