adodb.inc.php error

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Hi, just updated to Concrete5 5.6.3.1.
Am getting various errors:
Fatal error: Maximum execution time of 30 seconds exceeded in etc.../concrete/libraries/3rdparty/adodb/adodb.inc.php on line 964 (line number varies).
The page has the Data Display block and uses a List template to display c.250 records.

Any help appreciated.

PK

ArchiCentre