I have a library with 20k images. I have set the thumbnail size I want (large for a 30" screen). I want Lightroom to render previews for all while I sleep. But I can't find any command to effect this. So, when I open a folder, or collection, or by metadata (e.g., date), whatever photos selected start to render. I finish keywording/flagging/etc. a page of previews, then page down, and the rendering/calculating starts again. I have a dual core Athlon, with 2 gig of ram. I don't like waiting for rendering, and would prefer that everything gets rendered as a batch job while I sleep. Any advice?
Would also like to be able to have previews rendered for a particular size, so that when I am in loop view, and popping between pictures, I don't have to see the "Working" item for seconds for each picture. PhotoMechanic never had this issue....
