there's a vortex inburbankaround warner bros., disney and nbc, roughly bordered by olive, alameda and pass, where many ambitious food venues that dared venture seem to vanish quickly without a trace. exhibit a: french 75, which became savannah before disappearing forever. exhibit b: three generations of white linen, wine listed italian restaurants that cycled through so quickly that no one even remembers any of their names, on the corner of riverside and kenwood. exhibit c:...actually, maybe that was about it, at least in the last few years. gindi thai, arnie morton's and studio cafe magazzino are pretty much the only chic/more upscale/cute spots offering creative/finer/fresher fare, that have stood the test of time within walking distance of the three studios in this pneumatic triangle. don cuco's is great for the occasional lunch or happy hour, but a decidedly casual dining space with a delicious but fairly standard menu, and the thighs and waistlines of image-conscious studio folk