If you try to grab movie infos inside MyVideos from OFDB, then nothing happens.
This has allready been reported in the german forums.

when you start to grab the mediaportal.log looks like this

2008-08-06 09:50:05.406250 [Info.][MPMain]: GUIVideoFiles: IMDB search: Tierisch Wild, file:Tierisch Wild.avi, path:Y:\Kids\Filme
2008-08-06 09:50:05.406250 [Info.][MPMain]: Adding file:Y:\Kids\Filme\Tierisch Wild.avi
2008-08-06 09:50:05.890625 [Info.][MPMain]: Refreshing IMDB for -Tierisch Wild
2008-08-06 09:50:05.937500 [Debug][MPMain]: WindowManager: route MediaPortal.GUI.Video.GUIVideoFiles:6->MediaPortal.Dialogs.GUIDialogProgress:101
2008-08-06 09:50:05.937500 [Debug][MPMain]: Window: MediaPortal.Dialogs.GUIDialogProgress init

weird is that the log says "IMDB" because it searches OFDB (as configured).
After 10 Minutes the progressbar still didn't increase, nothing happens.