Hi, i have the same problem with an R3 NAS, 4.01 version. I can't access to the Web GUI, from both web browser (IE6, 7 or Firefox).
The first page was correctly showed but there isn't the login form (username and password).

Now, i try to replace the DOM with another (version 5.0) and i would to know if there should be problems with my data after replacing.

Thank's