Password

Guys.. everytime itry to logg on in this forum, i have to click 'forgot my password' cos idk it..
Therefore, everytime i have to and a new password will be provided for which i do not remember..
I want to change it but when i go to the 'Profile' page, It says :
New password : *

You only need to supply a password if you want to change it.
Confirm password : *

You only need to confirm your password if you changed it above
So I type the same passwords (The one that i want as my new password)
But it says :
The current password you supplied does not match the one stored in the database.
Help please?

Copy the password, and then paste it in the "current password" thing so you can change it.