The .bcad file I am currently working on has mysteriously dissapeared. I saved the file every time before shutting down the program. The file still exists in the folder it is saved in, however, it won't open and the info box says there is 0 kb of data. Frustrated, as I am in the middle of the frame build and now don't have access to the design. Luckily I have the csv file of build specs, but I'm going to have to re-model my design if I want any visual reference. Not sure what happened, maybe someone has seen this before? I am running the linux version on a mac, 10.6.8. All of my other .bcad files are intact, showing 254 kb data in the info box, and are loading properly.