Hint: For improved responsiveness, use Internet Explorer
4 (or above) with Javascript enabled, choose 'Dynamic' from
the View dropdown and hit 'Set Options' to save your changes.
here you can find the solution: http://stackoverflow.com/questions/415801/allowed-memory-size-of-33554432-bytes-exhausted-tried-to-allocate-43148176-byte
Put this line in the top of the php file <?php ini_set('memory_limit', '-1'); ?>