I have a WordPress 2.1 setup with sidebar widgets.
The Akismet sidebar widgets seems not to be XHTML valid code:
Below are the results of checking this document for XML well-formedness and validity.
1. Error Line 261 column 114: document type does not allow element "div" here; missing one of "object", "applet", "map", "iframe", "button", "ins", "del" start-tag.
...smet.com" title=""><div id="akismet1"><span id="akismetcount">805</span> <spa
The mentioned element is not allowed to appear in the context in which you've placed it; the other mentioned elements are the only ones that are both allowed there and can contain the element mentioned. This might mean that you need a containing element, or possibly that you've forgotten to close a previous element.
One possible cause for this message is that you have attempted to put a block-level element (such as "<p>" or "<table>") inside an inline element (such as "<a>", "<span>", or "<font>").
2. Error Line 261 column 218: document type does not allow element "div" here; missing one of "object", "applet", "map", "iframe", "button", "ins", "del" start-tag.
...ntare</span></div> <div id="akismet2"><span id="akismetbb">blockiert von</spa