Everything else works fine, but when I want to simply Export, lightroom freezes. The only way to do anything is to close the program with the Task Manager and reopen it. I can use the Export with Presets, or Export previous, or Export to Email or DNG, but the plain Export will not work, which is what I need to do most. It has worked for a long time, but since the recent raw files, it simply will not Export. Very frustrating. I have read all, changed the presets name, disabled the plug ins, uninstalled the CD/DVD (as some people have suggested) Nothing is working.