CVEL has been found to have a bug whose result is obvious and one
which was more serious and not obvious.

1. The obvious bug, introduced in 2009, caused the task to go into an
infinite loop while handling FO table data.  It was caused by the
inaccuracies of computing on times and was easily corrected by adding
a fudge factor and other checks.

2. The non-obvious bug caused the task to do no shifting for scans
after the first in single-source data sets with an index (NX) table.
These tables have been present on many/most single-source files for
the past 1-3 years.  The failure was obscured by a minor error in
which the source name was not set.  The resulting null characters
truncated the message that should have said "not shifted".  This is a
serious error and all use of CVEL on single-source files must be repeated.

The patch to 31DEC09 is available now, either with local compilation
or through the MNJ.  31DEC10 will be fixed tonight and a MNJ tomorrow
will correct your code.