I started a new project this morning and, after putting ~3 hours of work into it, I tried to open a file from another project to get some code from it. I got a warning about discarding an unsaved object. After telling it to go ahead, I realized that it was referring to the project I had just been working on and not another file that I had just opened.
Even though I never saved the project, the various files containing my code and dataset had to exist on the hard-drive. Are they still there, perhaps in a temp folder? I'm developing on a box running Server 2008 R2 (don't ask, not my decision :) ).