Originally posted by secateurs I'd say so.
By the way, if you press Play or any other button, or if the instant review image disappears from the LCD for any other reason, i don't think it's possible to do the WB setting anymore.
That is one of the best reasons not to shoot in JPEG.
Memory is cheap and most photo software around recognizes DNG and many regonize PEF these days.
If you need to post a photo on the Internet or put it in a document, exporting it to JPEG is a matter of a few mouse click work.
Bert