The following is an actual letter (Email) of complaint, that I've just sent to the BBC. I don't think any further introduction is necessary, as it speaks for itself:

Update: show your support for this issue at http://slated.org/bbc_microsoft_bias_vote.

Dear Sir/Madam,

I wish to complain about the article entitled "A quick tour around Windows Vista", which was published on the BBC website, and to voice a general concern regarding your relationship with Microsoft - a company subject to antitrust investigations in the EU, and previously in the US.