Just to add my 2 cents worth.. 3ds max design though.. No rendering, working on texture in Photoshop, go back to 3d and it crashes. Not every time but more often than not. Watched it once and the object went black before updating new texture and then crashed. Is it not possible to switch auto update off and do it manually until this gets fixed.. As I have to close my work..or remove textures until I have worked on them and then go through the motions of finding the files and reloading them.. Taking precious time away from actual working as reworking textures is a continual process.
Cheers!