Rich text field and xml:namespace prefix

I have a web application with couple of rich text fields on the form with Web Access Display property set to ‘Using Best Fit for OS’.

Generally when the users enter and save the data, the content in rich text field is stored along with the html tags (as checked from document properties in notes client) and data is displayed (with same formatting as saved) correctly when document is opened on web.

However in one document, rich text field contents are not displayed in read mode but when document is edited, the contents are displayed.

When i checked the document properties, the content of the rich text field were something like this:

Field Name: richtxtCon_SV

Data Type: MIME Part

Data Length: 994 bytes

Seq Num: 1

Dup Item ID: 0

Field Flags: SIGN SEAL

"MIME-Version: 1.0

Content-Transfer-Encoding: binary

Content-Type: text/html; charset=UTF-8

<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

Paragraph1.

Paragraph2.

Paragraph3.

Paragraph4.

" Ideally the content saved is enclosed within paragraph tags

. Can you please help me understand how the xml namespace attribute was saved in the field content. The user confirmed that he typed the entire text and saved the document instead of copying it feom external source like MS word\excel\ppt. Any help is greatly appreciated. Thanks, Abhi