Aha! Checksums?

A couple of people have asked about the first six bytes of a scan
line, noticing that they're not a graphical value.  I'll bet that
they're checksums!  How *else* do you know that you've got a valid

-russ <nelson@crynwr.com>    http://www.crynwr.com/~nelson
Crynwr Software   | Crynwr Software sells packet driver support | PGP ok
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