23/11/2004 02:30:08, Paul Fidler wrote: >I'll have a go. I presume by 'rail' you mean one of the +5V lines on the >CompactFlash card socket (pins 13 and 38 ?) Does it matter which one? 3.3V, not 5V, before you start to panic :) It does sound like you've got software woes as well, mind... Steve