There’s a new version of iubi Blue firmware over at Advanced MP3 Players.
There’s also an extra file here that you need to download (right click – save as) and add to the system folder after the unit restarts post update.
Apparently the update is to

… fix issues relating to picture aligment when recording, and when playing back recorded video.

which I haven’t ever actually bothered doing with my iubi yet, but it also seems to have updated the icons (speaker, volume and battery) in the top right corner of the screen too.

Advanced MP3 Players have the latest English version of the iubi Blue firmware. Seems to have fixed some of the issues I was having. Definitely worth the download.