The D7000 and I believe it was 6.0 version and it is suppose to support the D7000 and it did three days ago but refused to yesterday when I used an of brand memory card. Now it will not recognize raw files on any card. I tried LR3 also and got the same results. I was able to open the files with the Nikon software last night, but I'm not familiar with it and have been falling all over myself trying to convert and get them back into Adobe BR.
I believe you need ACR v6.3 and LR v3.3 to support the D7000 RAW files. Maybe you reverted back to older versions on your PC somehow??? - Terry
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I am no better than you. I critique to teach myself to see.
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Feel free to edit my photos or do anything else that will help me learn.
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Sony/Minolta - way more gear than talent.