Lightroom not recognizing ratings from IView Pro

Question

I use iView Pro as part of my workflow, adding metadata and ratings. I then synchronize to the original files. I am using DNG files for this, since RAW files could become corrupted if the metadata is embedded in them.
I have used this process with Photoshop CS2 and Bridge, and Bridge recognizes the keywords, other metadata, and ratings.
Lightroom is recognizing the other metadata, but not the ratings. Lightroom help says, if there is a discrepancy between the Lightroom library and the original file, there will be an alert icon that should be double clicked and the file can be updated.
I have no alert icons- Lightroom seems to simply be ignoring the rating, even though Bridge sees it.
I'm using Windows XP.
Any ideas?
Thanks

Answer 1

Thanks for the useful responses. I followed the John (johnbeardy)recommendation above, Metadata/XMP/Import and it did not work. I then upgraded iView from 3.1.2 to 3.1.3 and it worked! Go figure. I'm just learning Lightview and I didn't even know about the Metadata import, which I didn't find in Lightroom help.
On the RAW metadata subject, I was burned when a whole set of RAW files was irretrievably corrupted with metadata synchronization, going back and forth between Nikon Capture, iView, and Photoshop CS(I had originals backed up so survived.)
Although one can argue about the logic of the industry having proprietary, non-documented RAW formats, in my opinion it's very dangerous to imbed metadata directly into RAW files, because a simple change in the format from the manufacturer may result in corruption. I think Adobe is right to keep away from directly writing to RAW files, using XMP sidecar instead.
However, for me using DNG's is far preferable, since metadata can be imbedded without danger, and all the programs I use work well with DNG's.
Jim