alt131 - 9:52 pm on Dec 1, 2010 (gmt 0)
Welcome to WebmasterWorld marilyndwalker ;), and good on you for cleaning up first.
To add to the above advice: If you really do have frames you need to use the doctype you already have, but use <frameset> rather than <body>.
The recommendation [w3.org] has an example document. Even if you aren't using frames you may find it interesting because it makes it really esy to see why your document was failing validation.