e-mail comes through with html attachment

Startig last week when I receive an e-mail it comes through as an .html attachment, but I also receive the message in plain text in the body of the e-mail. However, when I click Forward, as if to forward the message, I see the message in its html format. First noticed this when getting the weather forecast.
When receiving the weather forecast now there are several links in the body of the message and an html attachment, whereas before it would open up with the daily weather icons. When I click on the attachment or *Forward* I see the daily icons.
Have checked the Options in IE and OE6 and they don't appear to have changed. Any ideas?

I've sent an e-mail to myself and that comes through with the *test* message in the body and also has an html attachment.

 

In OE click tool>options>read. Uncheck the line that says read all messages in plain text.

I've messed around with mine a bit here and it seems that checking that line causes the same behavior for me when I send myself an email in html format.

 

Hi Zander, that appears to have corrected the problem - don't know how, or why, it had changed. Thank you!

 

Glad to hear it fixed the problem. Windows sometimes seems to have a mind of it's own, doesn't it?