There may be multiple ways ... the way I do it is to double-click the smart object layer's 'thumbnail' on the Layers pallet.
Thanks for the prompt reply.
Yes, I thought that was the way to do it, but it doesn't work for me.
What does work, is right clicking on the arrow in the layers palette and choosing Edit Contents. However, this opens the image in ACR minus the vertical correction. But, when I make changes in ACR and click OK, the image opens in CS4 with the previous CS4 changes and the new ACR edits.
Ideally, I would like the image to open in ACR with the Lens Correction changes intact. But, maybe this isn't possible.
Any ideas?
Thanks.
D.