Intel Corporation, the world’s largest maker of semiconductors, appears to be not very good at predicting its earnings. The company just slashed its third quarter sales forecast, and withdrew its forecast for the full year. Intel now estimates that its third quarter sales will be between $12.9 billion and $13.5 billion, much lower than the previously predicted $13.8 billion to $14.8 billion. The company will announce new full-year projections along with its third quarter reports on October 16th. The chipmaker blamed this decrease on the declining demands for personal computers, as well as demand for corporate customers. Intel previously reduced its sales forecast back in July.