I find if you go to processes in the Windows Task Manager, sometimes explorer.exe is the one hogging up all the resources. So I do an End Process for explorer.exe and then Poser can do its thing a be done. Be sure to reload explorer afterwards from Applications : New Task... Just click New Task and type explorer in the pop-up window. Otherwise you can't see any desktop icons or the task bar. Then re-boot. This way at least you get to save any Poser work in progress.