In the #accountHistInfo page, we have the Order Information table, and the Status History & Comments table. By default each table has a caption, which contains a heading (h2).

When I tried to validate the page, I get errors messages saying that the "document type does not allow element "h2" here...".

I removed the headings and tranferred their ids to thir captions, and the page validated.

I don't really see this as a bug. Just something for those who are interested in markup validation.