COMEDIAN Jerry Seinfeld will appear in Microsoft Corp.'s next $300 million advertising campaign. A Wall Street Journal report confirmed Thursday that Seinfeld was the company's new pitchman. Seinfeld is being brought on board to help brighten Microsoft's image as the company tries to move past its bumpy launch of Windows Vista. Bill Gates will appear as well -- the once maligned, rich corporate nerd turned adorable, rich humanitarian nerd. The campaign is said to be based on the idea of “Windows, Not Walls,” stressing the need to “break down barriers that prevent people and ideas from connecting.” The immediate goal of the campaign is to reverse the negative public perception of Vista and thus incorporate elements of the Mojave Experiment. The combination of Seinfeld's pithy observations with a bit of Bill Gates' self deprecating humor seen in “Bill's Last Day” could be a winning combination. Whether that turns public opinion remains to be seen. The campaign is said to debut on September 4th.