I´ve had this problem with Dreamweaver´s Adobe BC extension a year and a haft now:
Is simply blank. The window where is supposed to show the USERNAME + PASSWORD rectangles to write them down.
I tried everything in all forums: install/uninstall AdobeBC Extension and DW CS5.5, update extension etc.. And Nothing happnes.
At first, DW was working ok with the extension (1 and a haft year ago, when I first installed DW) And suddenly, it just stop working and showing just a blank space.
If u have any suggestions, please let me know. I´m tired and frustated with this problem.
MAC OSX Lion 10.7.3 version vy the way.