Hi all. I upgraded to Lightroom 4 a couple of weeks ago and yesterday I noticed that after importing my shots into it the raw files had disappeared from my hard drive. Fortunately I still had them on the SD card so I re-copied them, re-imported them and again they disappeared - as has every other raw file that has been imported since I upgraded now that I've checked. I've done some more tests this morning and Lightroom 3.6 doesn't do this. Once I've selected the files I want to work on and clicked the import button, if I then navigate to the folder they're in I can see them disappear one by one as they're imported. Anybody else experienced this? And more importantly, know how to fix it? Any help or advice much appreciated. Edit: They don't appear in the recycle bin!!!!