3 Frame Offset Digitizing In 10-bit??

I logged some footage to capture in FCP using my AJA ioHD. I chose the ioHD 525 10-bit Uncompressed setting and for some reason, it captured everything with a 3-frame latency although the TC was correct on the clips in the browser.
So, I re-captured using the ioHD 525 ProRes422 and it's fine? Why would it capture incorrectly with the other setting? I used to capture all the time with my ioLD at 10-bit Uncompressed with no problems.
Thanks in advance.
Eddie

Even though the numerical timecode is correct in the browser, the visual first frame of the clip is 3 frames behind. For example, if I set the in-point to 59:59:59:29 and it's the black frame just before the first frame of picture, it will capture the frame at 01:00:00:02. But the clip will numerically be correct in the browser.
If I use the ProRes422 codec, this doesn't happen. I checked my ref signal and it's all fine. It plays back 10-bit uncompressed perfectly, just starts capturing in the wrong place.
Any ideas?

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Computer: 1.67 ghz PowerBook G4 with 1.5 GB RAM
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3 Frame Offset Digitizing In 10-bit??

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