>are there any known issues with VFP project building? whild building a project, vfp corrupted one of my class libraries to the extent that it deleted from the drive...this has happened only twice, but twice is too many...am i missing something like a configuation setting?

It's certanly not a configuration issue but you didn't provide any details to go on. You can try to recreate the project from scratch and see if it fixes the problem.