Problem with H.264 playback

I just converted some home-made movie using H.264 codec in Handbrake. The output file has a dimension of 640 x 352. Interestingly, it would play in iTunes, but will not sync with iPod video.
I thought iPod supported H.264 codec with resolution to up 640 x 480, am I wrong?
Please, help me understand what the problem is!
Thanks for your support!

Hi, i've been discussing the problems with the recent driver update here in another thread:
http://discussions.apple.com/message.jspa?messageID=12854782#12854782
10.6.5 did come with new kexts (the dates just didn't change because they are using the same directories, but the version numbers for the kexts are all new).
Unfortunately there are no fixes yet - we are hoping that 10.6.6 update will bring new stable drivers, otherwise the fix will be to revert back to 10.6.4

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