If I run a build inside parallels, which really stresses out the filesystem (thousands of files copied, moved, compiled, etc.), my build failes 8 times out of 10 with a "File not found" error. The problem is that the file is _there_. And anyway it's random which files are missing, so it's not my build scripts's error ;] It happens less frequently if Parallels is the active app, but if it's in the background, it happens always. I've tested in 1970, and the problem does not present there, so something has been changed in the 3xxx builds.
