Hi Matt

Thanks for this release. It fixes the previous problem! Really appreciate it!

Another one for you, which occurs when I click the 'show group nodes' symbol in the settings:
A Moodle error occurred:
Error writing to database
Debug info:
SQLState: 42000
Error Code: 102
Message: [Microsoft][SQL Server Native Client 10.0][SQL Server]Incorrect syntax near 'course_module_config'.
UPDATE mdl_block_ajax_marking course_module_config INNER JOIN mdl_course_modules course_modules ON (course_modules.id = course_module_config.instanceid AND course_module_config.tablename = 'course_modules') INNER JOIN mdl_block_ajax_marking course_config ON (course_config.instanceid = course_modules.course AND course_config.tablename = 'course') SET course_module_config.groupsdisplay = NULL WHERE course_config.id = '4' [array ( 0 => '4', )]
Stacktrace:

• line 397 of \lib\dml\moodle_database.php: dml_write_exception thrown * line 252 of \lib\dml\sqlsrv_native_moodle_database.php: call to moodle_database->query_end() * line 368 of \lib\dml\sqlsrv_native_moodle_database.php: call to sqlsrv_native_moodle_database->query_end() * line 737 of \lib\dml\sqlsrv_native_moodle_database.php: call to sqlsrv_native_moodle_database->do_query() * line 123 of \blocks\ajax_marking\actions\config_save.php: call to sqlsrv_native_moodle_database->execute()

Dan