Summary of $20 errors posted on this thread (updated March 3, 2010):
ELN 9798312 / 9698312 46/25 (X-3)
ELN 9799195 / 9699195 46/25 (X-3)
ELL 0549983 / 0549993 44/34 (E-4)
ELN 8825112 / 8307112 44/34 (E-4)
ELN 8826126 / 8308126 44/34 (E-4)
ELN 8830800 / 8312800 44/34 (E-4)
ELN 8831285 / 8313285 44/34 (E-4)
ELN 8197740 / 8097740 24/24 (E-3)
ELP 4596668 / 4496668 24/24 (E-3)
ELP 6396389 / 6296389 24/24 (E-3)
ELP 6398531 / 6298531 24/24 (E-3)
{http://www.give-a-buck.com/special/elp-error.jpg}
In the above note, the serial number on the right is correct, and the mismatched digit on the left rolled ahead by 1. This seems to be a common problem for position E-3.
Clearly, these errors are widespread over several prefixes, and they seem to occur in certain positions, though the errors vary slightly (i.e., it's not always the second numeral on the left side that rolls ahead).
Keep finding and reporting them, folks!