Cannot Edit some Contributions After 4.2 Upgrade

Hi,

I recently upgraded from 4.0 to 4.2 . It works great, however, When I edit SOME contribution records and hit Save, I receive an error that produces the following backtrace. Seems like it has to do with Price Sets.

----------------------------------------------------------

Notice: Undefined index: price_field_id in Drupal/sites/all/modules/civicrm/CRM/Contribute/Form/Contribution.php on line 1175

backTrace
Drupal/sites/all/modules/civicrm/CRM/Core/Error.php, backtrace, 293
Drupal/sites/all/modules/civicrm/CRM/Core/DAO.php, fatal, 721
Drupal/sites/all/modules/civicrm/CRM/Contribute/Form/Contribution.php, getFieldValue, 1175
Drupal/sites/all/modules/civicrm/CRM/Core/Form.php, postProcess, 246
Drupal/sites/all/modules/civicrm/CRM/Core/QuickForm/Action/Upload.php, mainProcess, 151
Drupal/sites/all/modules/civicrm/CRM/Core/QuickForm/Action/Upload.php, realPerform, 128
Drupal/sites/all/modules/civicrm/packages/HTML/QuickForm/Controller.php, perform, 203
Drupal/sites/all/modules/civicrm/packages/HTML/QuickForm/Page.php, handle, 103
public_html/Drupal/sites/all/modules/civicrm/CRM/Core/Controller.php, handle, 289
public_html/Drupal/sites/all/modules/civicrm/CRM/Contribute/Page/Tab.php, run, 296
Drupal/sites/all/modules/civicrm/CRM/Contribute/Page/Tab.php, edit, 353
Drupal/sites/all/modules/civicrm/CRM/Core/Invoke.php, run, 228
Drupal/sites/all/modules/civicrm/drupal/civicrm.module, invoke, 500
, civicrm_invoke,
Drupal/includes/menu.inc, call_user_func_array, 503
Drupal/index.php, menu_execute_active_handler, 21

Sorry but we are not able to provide this at the moment.
We experienced an unexpected error. Please post a detailed description and the backtrace on the CiviCRM forums: http://forum.civicrm.org/
Return to home page.

----------------------------------------------------------------------------
Any ideas?

NOTE: If this matters, I also upgraded PHP 5.2 to 5.3 and MySQL 5.0 to 5.1