I know this topic is somewhat aged but as a recent purchaser of PD6 latest version+patch I have the same problem with the title and tag fields.
The tech guys at cyberlink tell me it is a Firefox browser issue.
I notice Firefox wasn't mentioned in earlier posts.
Heres the rub: I have 2 entirely different PC's both XPpro. one has Intel brains and IE6, the other a lesser spec AMD with IE7. both use Firefox by default and neither permit title or tag to be entered. Description is OK.
As a real acid test I have just installed the PD6 software on my work laptop, again XPpro, AMD, IE7 & Firefox and it works. I conclude that the problem lays beyond Firefox as both desktops have far more software on board.
It was suggested that I should try re-installing XP. Err no thanks, I rather pull my own teeth...
If anyone has come with a fix I'd love to hear it.
Jan