Problems with Password when Submitting 2.0 Filters

I recently tried to Submit a Filter. This was the first time I had tried this under 2.0 , and it kept spitting a 'Authorization denied' at me when I entered my password. I tried logging in to the website with the same password, no problem.
I even entered the Password by typing it in another window, doing Cut-and-Paste, still Authorization denied. Finally, I logged in using V1 Filterforge, started a Submit and got by the password prompt with no problems, then hit cancel before actually submitting.
After that, I was able to submit my Filter under V2.0 with no problems just by using the stored password.
For additional info: Using Filterforge 2.004 Beta under Windows 7 Home Premium, the OS had just been installed, thus the stored password was empty when I tried the first time.