Seymour Cray’s Cray Computer Corp spin-out from Cray Research Inc reports from its Colorado Springs headquarters that its white hope, the Cray-3 supercomputer, is behind schedule. The company says that it still expects to have two prototypes of the Gallium Arsenide machine built by the end of the year, but that it does not now expect to have completed testing. The company said that the snags were of the kind expected with any major new technology and that there were many little problems rather than one big one. Only customer so far is Lawrence Livermore National Laboratory, and it now has the right to cancel its $30m order, but that is unlikely.