Would a group called Stew and the Negro Problem be at home playing a venue like the Mondavi Center for the Performing Arts in Davis? Absolutely. The intimate, lounge-like 250-person Vanderhoef Studio Theatre was the perfect setting for musician Stew and his provocatively-titled band, The Negro Problem, on Tuesday evening. The name is meant to challenge perceptions be in-your-face and humorous, which also describes the band’s music quite accurately. Announcing that his band was probably mad ... sschea