The attached LLB contains a vi (casting vi.vi) that causes LabVIEW to crash on my installation (6.02, Windows 2000). The crash is apparently related to a problem with automatic type-casting after a formula node, and inside a VI. The attached VIs were constructed from scratch to duplicate the crash, so it's not a corrupted file problem. Having isolated the problem this far, I can easily work around it; but I thought I should also report the issue, since I don't find it on your web site after a trying couple of different search strategies.