LR4 and lens profiles
There are normally separate profiles for RAW and jpeg files. A brief look in my Lightroom folders only shows a RAW version for that lens so I presume you are now looking at a jpeg file.
Once you locate the file on your computer you could try copying the file to a new file leaving off the RAW part of the file name e.g. copy NIKON D90 (Nikon AF-S DX Zoom-NIKKOR 17-55mm f2.8G IF-ED) - RAW.lcp to NIKON D90 (Nikon AF-S DX Zoom-NIKKOR 17-55mm f2.8G IF-ED).lcp.
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