Motorola Droid :: Default Email - Contacts

Just realized that when I go into "Contacts" and select to email a contact that it is pulling up GMail rather than my Corporate Email client. All of my contacts are synced from my Outlook through my corporate Exchange server so I need to be sending the email from my corporate email. I've gone into corporate email and selected to make this the "default" email client, but it is still pulling up GMail when I select to email from Contacts. I also have the "Corporate Contacts" app that I downloaded from the Market. It syncs with Exchange as well, but it is also pulling up GMail when I select to email from there as well. Is there another default switch somewhere that I'm missing?