Alliant Computer Systems Corp, Littleton, Massachusetts warns that second quarter turnover and profit will fall short of the company’s and Wall Street analysts’ expectations because of problems associated with the risks of a new product transition period, as it was the first quarter of volume shipments of the 80860-based FX/2800 minisupercomputer, announced in January; some 30 of things have shipped and the company says it sees sales of $20m rather than the $23m to $24m, with an 8 to 12 cent loss per share against 7 cent profit a year ago.