I have a E8358A VNA which is playing up since yesterday. The machine never had a password (from the days I started using it). Now when booted up, it is not letting me login and is asking for a password. Tried all default options PNA-Admin, PNA-User, tusnami combinations-nothing worked. IS this a Hard-drive remapping issue? Has anyone seen this and got any suggestions? Kindly share any knowledge you may have on resolving this.