Component shortages are to blame for delays associated with Apple Computer's new line of Intel-based Macintosh computers, AppleInsider has learned. Introduced in January, Apple's iMac Core Duo and 15-inch MacBook Pro computers are the first from the Cupertino-Calif.-based company to be modeled around Intel's architecture and microprocessors. As a result, both systems were designed to include a number of common third-party components — a streamlining method often associated with reduced costs and simplified production. In the first few weeks the computers have been on the market, Apple has been unable to reap the benefits this strategy, however.