	computer associates ca starts bpi bpii bid computer associates international inc said it has started its previously announced dlr per share tender offer for all shares of bpi systems inc in a newspaper advertisement the company said the offer which has been approved by the bpi board and is to be followed by a merger at the same price is conditioned on receipt of at least shares the offer and withdrawal rights expire may unless extended in addition to shares sought in the tender shareholders of bpi owning shares or pct have agreed to sell their shares to computer associates for the tender price reuter 
