Help - change suddenly in edit mode and I can't tell what happened!

I'm relatively new to Lightroom.  While I just edit a photo, my girl came by and press the keyboard and suddenly the display of the picture has changed.  It seems that all blacks in the picture changed in primary blue and white in the photo changes to primary red.  Now have all the pictures I try to change this setting.  I looked everywhere in the settings and history, and I can't understand what has happened.  I hope that you may know what happened because my only other idea is having to remove Lightroom and reinstall.  Any ideas what it could have pressed?  She literally hit the keyboard and this was the result.  Help, please!

1Screen shot 2010-11-15 at 6.54.19 PM.jpg

Those are clipping warnings. Press 'J '.

HAL

Tags: Photoshop Lightroom

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