hyperlinks not working in Outlook 2007

Hello,
I have an issue where I do not get the hyperlink activated on plain text emails in office 2007. I’ve tested the same email in 2003 and Outlook Web Access where I can click on the address with no issues. HTML format emails are OK with hyperlinks, just RTF and plain text. Any help would be great! I have the latests service packs for office 2007.