When I upgraded from IDEA 3 to 4 (still in EAP), I copied my 3.0 projects into my IDEA4.0 install directory under IdeaProjects. I wanted to keep them separate (seems logical) in case I wanted to revert back to version 3.
Today I ran the 4.0.3 install .exe and the install blew away my IdeaProjects directory, that obviously included my project files, under the IDEA4.0 directory. To be honest, I think this happened once before during EAP (did I learn my lesson? No.) What I can't understand is why would the install remove non-IDEA directories?! At least WARN me! Tell me you are about to Eff up my day. Off to re-create my modules sigh