It’s been quite awhile since I’ve posted anything new under the Question and Answers with GrandmasterB category, but today I received a great question in my inbox that I had to share with you all. The email was from my good pal Mike Cusden (you all know him as Cuzzy) from Cuzoogle. He had run his site through the Markup Validation script at http://validator.w3.org/ and it came back with quite a few errors and warnings, his question follows:

Hey GrandmasterB, I ran my site through the Markup Validator and it came back with a ton of errors. Are any of these errors fixable? And is it something that’s relatively easy to fix?

My first reaction was one of surprise, because every theme that I design and develop is run through to make sure that the code is 100% XHTML compliant before turning it over to the client. After taking a look at the output from the validator I could see exactly what the issue was and what needed to be fixed. For reference, I have pasted a copy of the report link here for you to follow along.

The problem that Cuzzy is having is that his theme code isn’t the problem, it’s the advertising code that he’s placed on the site. If you look at the errors that appear on the Markup Validation page, you’ll notice that the first error states the following:

Line 15, Column 107: cannot generate system identifier for general entity “MarketPlace”.
…om/widgets/q?ServiceVersion=20070822&MarketPlace=US&ID=V20070822/US/cuzoogle- 

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