A series of keystrokes got reveal codes turned on for me emails and replies. How do I turn this option off?

Hi,Does it happen in Outlook or other email client?As we mainly discussion Exchange in this forum, I suggest you write a post on corresponding community. Outlook newsgroup: http://www.microsoft.com/communities/newsgroups/en-us/default.aspx?dg=microsoft.public.outlook.general&mid=a1fafbaf-1281-4b24-ae30-3df4ee0c5255Thanks,Elvis