i check responce and find problem in equation question.
the participant answered all questions but the equation question record are 0.
Then, I set update answer with one token.
when participant use the old token to display the survey again, the equation question record become correct value in responce.
is that bug or something wrong?

i tested several times, it should be a bug, and will cause high level security problem

Please update to the latest 2.05 and retest.

we want to update, but supplier insist to use PHP5.2 because the quote magic is disabled in php 5.3