clearing table fields ?

[jbv]

I'm trying to clear the content of some table fields
using revEmptyTable, but it doesn't seem to work
for all table fields on the card...
for instance I have 3 table fields, but it works only
for the first 2, and not for the 3rd...
is any special setting (locktext, whatever) required
in order to use the handlers from the revTable
frontscript ?

Thanks,
JB