As reports trickle in that opening-day sales for Microsoft's Vista (the software giant's new $6 billion operating system) have been tepid at best, now may be an appropriate time for the company to revamp its $500 million marketing strategy—namely, having Microsoft Chairman Bill Gates stump for the product on every media outlet that will have him. The bespectacled ubermogul has been nebbishy at best—and downright bumbling at worst—in his attempts to sell the virtues of Vista to the general public.