Eidos has joined the ranks of publisher warning investors of a short fall. The company will announce fourth quarter and full year results upon the close of its business year on March 31, and all indication point to significant drop in sales. Eidos is warning investors that a general slowdown in costumer demand has caused retail orders of all titles to be much lower than expected. Eidos predicts that the transition to next-generation platforms will have a positive impact on sales, but stopped short of predicting a financial turnaround. The profit warning sent Eidos shares down 50 percent in Friday trading.