Is there any way to adjust fix chroma burst?

[Septimus Prime]

Hi,

So I recently calibrated by Samsung LN40A540 with the Spears & Munsil BD, and the one test where my TV noticeably fails is the chroma burst. The narrowest vertical bands show up as black, and so I get black blotches on the chroma test pattern. My horizontal bands and luma burst are all good, though.

Is there anything I can do to fix this problem, or is this just how it's going to be? I will say that BDs still look terrific compared to how they did on my old Westinghouse, and I don't really care that much, but I'd still like to know.

Thanks.