-- Gemstar shares are off 80% since July, prompting News Corp.'s $4.2 billion writedown

-- Falling circulation at TV Guide and the sluggish rollout of interactive programming guides have slowed growth

-- Gemstar booked revenues from licensing deals that it never actually received

-- Relations with its most crucial customers--cable operators--are strained

-- News Corp. execs claim Gemstar underplayed an upcoming ruling by the International Trade Commission that could weaken its patents

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