YOur error probably has simething with a line numer in it and the file that gives the error. Could you attach that? Thanks!

It doesn't I'm afraid ... just a white screen with the error text as it appears in my comment followed by the full SQL query ... here's the query from a test survey:

Error executing query in dbExecuteAssoc:CDbCommand failed to execute the SQL statement: SQLSTATE[42000]: [Microsoft][SQL Server Native Client 11.0][SQL Server]Incorrect syntax near '897685'.. The SQL statement executed was: UPDATE survey_897685 SET submitdate = '1980-01-01 00:00:00.000', startlanguage = 'en', token = 'ydfdskzqp9btps7', 897685X4X611 = '1', 897685X4X612 = '1', 897685X4X613 = '3' WHERE id=1

The URL is /index.php/admin/dataentry/update

do you have debug=2 in your config.php? you can leave the debugsql to 0

I have both set actually:

    'debug'=>2,
    'debugsql'=>1,

Ok well the url was specific enough :) Will post a fix soon

Fix committed to master branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=10567

Fix committed to 2.1 branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=10568

Should be working now, also updated the link to brwose this response

LimeSurvey 2.0+ build 121204 released.

Fix committed to develop branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=15435