Pruiz, I doubt if you're doing anything wrong, but your graphics card may be missing an upgrade (unfortunately, that may mean an upgrade that hasn't been written yet - I had that with Poser 6).  You say, though, that Poser completes the render and then hangs.   I used to get something similar with Poser 6.    Is this where you actually get to try to save the rendered file and then get the all-white treatment (not the entire screen, but the rendered one)?   I don't think I have seen that in Poser 6 since SR3, but I haven't done much rendering in Poser 7 yet.    According to my recollection, Poser was waiting for a response, but the window requesting the response instantly hid itself behind the main Poser window.   Giving the request window priority in the Task Manager used to fix the problem - I think.   If the render has completed, in Poser 6 or 7, the output should be buffered.   Even if you lose Poser, you should be able to recover the render from the list of remembered renders.