fix it is a good idea! but if it cant help...
have you tried repairing the program?
start - control panel - programs - programs and features - uninstall or change a program - outlook - change - repair
have you tried windows update with additional Microsoft software updates enabled?
start - all programs - windows update - change settings - check give me updates for Microsoft products and check for new optional Microsoft software when i update windows
have you tried uninstalling and re installing the program? How to Uninstall Outlook 2007 | eHow How to Install Microsoft Outlook 2007 | eHow