I was having pretty much the sae problem with the windw re-positioning itself on startup with 4.03 after I upgraded to XP - only XP problem I had with it. Went away when I installed ProPak - still not sure what caused it. When rendering, I currently hear oneinstance of the sound assigned to default sound in the sound control panel. I remember in Win95 the default sound repeated several times. I always thought it was from the OS interpreting poser calculating each lightset and/or texture as a separate OS event & announcing it. I never considered it a problem, as I just assigned a quieter sound to that event and kind of missed it when I upgraded OS (thought my renders were locking up on me:-)).