Q. After applying the latest Mac OS X update on my computer I can no longer send faxes with my Apple USB Fax/Modem.
A. Surprisingly the Mac OS X 10.5.7 software update may affect the settings and your USB modem may stop sending faxes but the fix is easy. Open “Print and Fax” in System Preferences and select your “External Modem” and press the Minus sign to remove it. Then choose “Fax PDF” from the Print menu and your Mac will recreate a new “External Modem” and you can send out faxes.