The share price in Advanced Micro Devices (AMD) seesawed yesterday after the news of Gateway took it up and a cancellation of two investor conferences dumbed it down. (Separate story: Gateway goes AMD) Its share price fell by 14 per cent, representing $3.375 of its value after AMD cancelled two investor meetings. But AMD is providing no reasons for the cancellation. That is bound to give rise to speculation that it is possibly having trouble with yields on its processors, the introduction of the K6-3, or even that it is in talks with other unspecified companies. ®