SendObject Error

Have an Access application that helps us track and route change requests. I have a control on the form that creates an email with the request number, description and other info to the analyst that will handle the request. This uses the following command line

DoCmd.SendObject acReport, stDocName, acFormatRTF, , , , stSubj

Recently installed Office2007 on my PC. Control no longer functions and generates the error

The command or action ‘SendObject’ isn’t available now

Older versions of this database (Access97 & 2000) no longer work either.

Anyone have any idea what is going on here and how to deal with it?