[Milhouse]

Code:

CREATE USER 'xbmc' IDENTIFIED BY 'xbmc';
CREATE database xbmc_video;
CREATE database xbmc_music;
GRANT ALL ON *.* TO 'xbmc';

Why are you creating the databases - the Wiki doesn't say you should be doing this. Just leave the job of database creation to XBMC. Hardly surprising you've got a problem when you go off piste. Also naming the video (with the <name> tag in advancedsettings.xml) usually causes more problems - do you really need to use a custom name prefix? If not, don't.

Also turn on debug log (wiki) and check xbmc.log for errors, or upload the log on pastebin.com or xbmclogs.com if you still can't spot the problem.

Edit: Ned beat me to it - that'll teach me to leave a post open for an hour before hitting reply...