The calculation field no longer works now that we have upgraded to Safari 5. It worked just fine on Mac OS 10.5.8 with Adobe Reader 9.3.2. The user migrated all data to a new iMac computer with Mac OS 10.6 and Adobe Reader 9.3.2 and now the pdf form will not calculate. We have checked the Reader Preferences and it is set to calculate. Any suggestions as to what the problem might be?