I've done roundtrips with LR 1.4 quite a lot. I thought I understood the process in LR2.0, but.... I've even gone back to help and reread it. When I open the dialog box (not opening as smart object, just file) it doesn't ask about stacking as before. My understanding is that it won't save anything UNLESS I save it but then it will place the tiff next to the original file--not so for me.
So--I open, process further, I've tried 'save as' and 'save'. I end up with a tiff in the folder on my drive---but it does NOT appear back in LR. I guess I need some enlightenment on this LOL. In the help it actually says that you will be 'prompted' to save in LR--I've never gotten that. I've tried over and over--the tiffs are there--but not in LR unless I actually import and stack together. I can't find anything in preferences, etc. that address this--but help doesn't mention anything other than a very seamless process. What's the magic word here? Otherwise, really like LR 2.0--the gradient, etc. are just really terrific.
Oh, just to clarify (though I doubt this has anything to do with it)--I do have ACR 4.5 which I needed to be able to do the transfer.
Diane