This is another issue I have with LR2. This time I installed the trial version directly from Adobe (and now more than once because of this problem) and everything installs correctly but once I fire it up my library will not load and changing from 'Library' to Develop' will give me a error stating some module didn't load. Anybody get this error before and what was your solution. I tried placing another library in its place and loading it up without success, it can see the images but nothing loads up and the side panels are a no show. I can't use Aperture either since they haven't updated the raw specs for my camera either, only LR2 and CS3 have done so far so I'm bummed until this gets sorted.