I use Download runtime for most new stuff-- except V3 clothing and fairy plus cute stuff those both have their own runtimes. I keep only the injectables in the Poser 5 runtime because the bigger it got the slower it got until it didn't want to run at all. Then there's my old Poser 4PP runtime. I notice that Poser 5 seems to load only one runtime and I'm not sure how to set this-- sometimes it's Downloads, sometimes 5 sometimes Poser 4. I think it has to do with what is loaded last in the last scene before quitting. I do know that when Downloads or Poser 4 have not been the primary runtime loaded at Poser's boot, they take forever to load-- this makes me think, they are not on the list to be searched at rendering. My fastest render on Poser 5 was using only the Fairy runtime. It is also the smallest lightest runtimewith the lightest textures as well. It rendered in under a minute-- 1500 by 1500 at 72 dpi. I never render anything at any higher dpi. 2000 by 2000 is the highest I've rendered in Poser 5. I rendered up to 4000 in 4PP. Often I will drop a render in 5 to 1200 if I think Ive jammed too much stuff in. For awhile, when I had my Poser5 runtime the lightest, I could pose without the boxes obscuring my view, I can never do that now. Its very wearying trying to work under these conditions. Emily