In / Out Traffic is not right on PIX 6.3.4

In / Out Traffic is not right on PIX 6.3.4

I'm testing FA4.0 build 4001, but from the report, I got huge out traffic but a little in traffic, I don't think it is right. From other post, there is cisco pix patch for FA, but I don't know if the patch should be installed on this build 4001 and where I can get this patch.

Thanks

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